Vegetable Cultivar Descriptions for North America

Potato, Lists 1-26 Combined

Edited by David Douches

Abnaki - Breeder: Akeley, Murphy, Cetas, USDA; and Correll, U. Maine. Parentage: USDA X1276-185 x B4116-2. Characteristics: not in production; high yield of white, round tubers; late maturity, good for tablestock, medium tuber solids. Resistance: verticillium wilt, leafroll induced net necrosis. Adaptation: northeast United States. American Potato Journal 47:229. 1970.

AC Belmont (F70021) - Breeder: Tarn, Ag. Canada, New Brunswick. Parentage: Raritan x F51013. Characteristics: medium-high yield of round, white tubers; early maturity, good for tablestock, low tuber solids, short dormancy. Resistance: fusarium tuber rot. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 72:409. 1988.

AC Blue Pride (N1522-8) - Breeder: K.G. Proudfoot, Agr. Canada, Newfoundland. Vendor: Provincial Government Seed Farm, Glenwood, Newfoundland. Parentage: N713-16 x N889-78-3. Characteristics: medium high yield of long, blue-purple tubers; midseason maturity, good for tablestock. Resistance: Potato Wart Disease. Adaptation: Newfoundland conditions.

AC Brador (F73008) - Breeder: Tarn, Ag. Canada, New Brunswick. Parentage: F61101 x F60034. Characteristics: not in production; medium yield of oblong, white tubers with yellow flesh; late maturity, good for tablestock or french fries, high tuber solids, long dormancy, bred for export. Resistance: late blight, verticillium wilt, early blight; tolerance to pea leaf roll virus. American Potato Journal 72:401. 1991.

AC Chaleur - Breeder: Tarn, Ag. Canada, New Brunswick. Parentage: Belleisle x N457. Characteristics: medium-high yield of round, white tubers; medium-early maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: PVY. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 72:393. 1988.

AC Domino (N1051-1) - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: Blue Mac x SVP AM66-42. Characteristics: not in production; high yield of round, purple tubers; late maturity, good for tablestock, high tuber solids, medium dormancy. Resistance: golden nematode, moderate-late blight. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1990.

AC Novachip (F77087) - Breeder: DeJong, Ag. Canada, New Brunswick. Parentage: F68061 x F66011. Characteristics: medium-high yield of oblong, white tubers; medium maturity, good for tablestock, potato chips, medium tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced primarily in Atlantic Canada, northeastern United States, valid 1996. American Potato Journal 72:417. 1990.

AC Pink Pearl (SJ62.26-9) - Breeder: K.G. Proudfoot, Agr. Canada, Newfoundland. Vendor: Provincial Government Seed Farm, Glenwood, Newfoundland. Parentage: Ultimus x Katahdin. Characteristics: high yield of numerous oval pink skinned tubers; very late maturity; good for tablestock; long dormancy. Resistance: Potato Wart Disease. Adaptation: Newfoundland conditions.

AC Ptarmigan (F76080) - Breeder: Lynch, Ag. Canada, Alberta. Parentage: ND6993-13 x F59103. Characteristics: medium yield of oval, lightly russetted tubers; early maturity, good for tablestock, chips, field delivery, low tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced primarily in the prairie provinces of Canada, valid 1996. American Potato Journal 71:387. 1993.

Acadia Russet (F68036) - Breeder: Tarn, Young, Ag. Canada, New Brunswick. Parentage: Bake-King x Norgold Russet. Characteristics: not in production; high yield of oblong, lightly russetted tubers; late maturity, good for tablestock, medium tuber solids, short dormancy. Resistance: fusarium tuber rot. Adaptation: maritime provinces of Canada. American Potato Journal 60:925. 1981.

Agassiz (MN8586) - Breeder: Lauer, University Minnesota. Parentage: MN321.64-11 x MN305.64-10. Characteristics: not in production; medium yield of oblong, russet tubers; late maturity, good for tablestock, chips, medium tuber solids, medium dormancy. Resistance: common scab, hollow heart. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1983.

Alamo (B5066-3) - Breeder: Akeley, Perry, USDA, Texas A and M University. Parentage: Kennebec x Merrimack. Characteristics: not in production; medium-high yield of oblong, white tubers; medium-early maturity, good for tablestock, low tuber solids. Resistance: late blight, R-gene, common scab, net necrosis caused by pea leaf roll virus. American Potato Journal 45:139. 1967.

Alasclear (AK14-70-1-72) - Breeder: Dearborn, USDA, University Alaska. Parentage: Ontario x AK1-62-90-64. Characteristics: not in production; high yield of oblong, white tubers; late maturity, good for tablestock, high tuber solids, medium dormancy. Resistance: common scab. American Potato Journal 60:189. 1981.

Alaska 114 - Breeder and vendor: Alaska Agric. Expt. Sta., Palmer. Parentage: Irish Cobbler x MN13-1. Characteristics: medium vine type, tough white skin, stores well, good culinary characters. Adaptation: Alaska. American Potato Journal 37:108-110, 1960.

Alaska Frostless (8-60-17-61) - Breeder: Alaska Agric. Expt. Sta., Palmer. Vendor: Alaska Crop Improvement Association. Parentage: Alaska 114 x 27-11. Characteristics: tops withstanding frosting to 28 °F; tubers thin oval with faint purple blush on exposure to several days of light. American Potato Journal.

Alaska Red (AK5) - Breeder: Dearborn, University Alaska, USDA. Parentage: AK11-57-1-59 x Red Beauty. Characteristics: not in production; medium yield of oval, red tubers; medium maturity, good for tablestock, low tuber solids. Adaptation: Alaska. American Potato Journal 54:365. 1976.

Alaska Russet (AK47-44-1R) - Breeder: Dearborn, University Alaska, USDA. Parentage: Columbia Russet x MN15-2. Characteristics: not in production; low yield of long, russet tubers; late maturity, good for tablestock, medium solids. Resistance: common scab, susceptible to shatter cracking. American Potato Journal 41:137. 1963.

Allagash Russet (AF193-4) - Breeder: Reeves, Akeley, University Maine, USDA. Parentage: BR7093-56 x B6024-3. Characteristics: not in production; high yield of oblong, russet tubers; medium maturity, good for tablestock, chips, french fries, medium-low tuber solids. Resistance: net necrosis caused by pea leaf roll virus, common scab. American Potato Journal 57:553. 1980.

Allegheny Mountain - Breeder: Pennsylvania State University, University Park. Parentage: Russet Rural x McCormick. Characteristics: obsolete. Adaptation: White Rural cultivar. Adaptation: same as White Rural. 1939.

Allehanna - Breeder and vendor: Pennsylvania Coop. Potato Growers. Parentage: selected from undisclosed cross. Characteristics: very early maturity, white, uniform smooth tubers, high solids, high yields. Adaptation: Pennsylvania. American Agriculturist, 5 March 1960.

Anita - Breeder and vendor: Rockefeller Foundation, Mexico City, Mexico. Parentage: seedling from self pollination of a selection of USDA Ace 25953 x USDA seedling B2131-3. Characteristics: tubers round, light reddish color, white fleshed, high yields. Resistance: late blight-field type. Adaptation: central Mexico. American Potato Journal 36:301, 1959.

Anson - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: F53018 x Mira. Characteristics: not in production; high yield of round, white tubers; late maturity, good for tablestock, high tuber solids. Resistance: moderate to late blight. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1981.

Antigo - Breeder: University of Wisconsin, Madison. Vendor: Wisconsin Certified Growers. Parentage: Menominee x Wis. Seedling 302.44-6. Characteristics: early to midseason maturity, tough tuber skin for mechanical harvesting. Resistance: scab. Similar: Irish Cobbler. Adaptation: North central. American Potato Journal 32:407-410, 1955.

Arenac (IA1111-8) - Breeder: Thompson, Iowa State University, Michigan State University, USDA. Parentage: B595-76 x IA872-4. Characteristics: extinct; medium-high yield of round, white tubers; late maturity, good for tablestock, chips, high tuber solids. Resistance: common scab; immune to PVX. Potato Handbook, 1962, Potato Assoc. Amer. 1962.

Ashworth - Breeder: Cornell University, Ithaca, New York. Parentage: CBP-1 x AQF-4, both parents Solanum demissum derivatives. Characteristics: determinate growth, medium maturity, approximates Katahdin in yield, almost symptomless carrier for virus Y. Resistance: late blight. Adaptation: Northeast. American Potato Journal 24:319-336, 1947. 1946.

Atlantic (B6987-56) - Breeder: Webb, Wilson, Shumaker, USDA, University Maine, University Florida. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: high yield of round, scaly tubers; medium maturity, good for chips, high tuber solids, short dormancy, popular throughout the United States and Canada for chip production using direct-delivered potatoes, valid 1996. Resistance: golden nematode, pink eye, net necrosis caused by pea leaf roll virus; immune to PVX. American Potato Journal 55:141. 1976.

Avon (F4713) - Breeder: Young, Ag. Canada, New Brunswick. Parentage: F1464-26 x USDA X96-56. Characteristics: not in production; medium-high yield of oblong, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: late blight, R-gene, common scab. American Potato Journal 39:363. 1958.

Bake-King (NY3) - Breeder: R. Plaisted, Cornell. Parentage: Merrimack x Green Mountain. Characteristics: high yield of oblong, white tubers; medium-early maturity, good for tablestock, high tuber solids, a russetted sport was released in 1994 (APJ, 71:127). Resistance: late blight, R-gene. Adaptation: produced primarily in Alaska, valid 1996. American Potato Journal 44:287. 1967.

Batoche - Breeder: Russel, Young, Ag. Canada, Saskatchewan. Parentage: Scott 2774-3R x Redskin. Characteristics: not in production; medium yield of round, red tubers; medium maturity, good for tablestock, medium tuber solids. Resistance: moderate to verticillium wilt. Potato Varieties in Canada, 1991. New Brunswick Department of Ag. 1976.

Beauty of Hebron - Breeder: Coy, private. Parentage: Garnet Chili. Characteristics: open pollinated seedling; not in production; medium-high yield of oval, white-pink splashed tubers; early maturity, good for tablestock. USDA Circular 741, 1946. 1978.

Belchip (B6987-29) - Breeder: Webb, Wilson, Shumaker, USDA, University Maine, University Florida. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: not in production; high yield of round, white tubers; late maturity, good for chips, medium tuber solids, medium dormancy. Resistance: race O of late blight, R-gene, heat necrosis; immune to PVA, PVX, net necrosis caused by pea leaf roll virus. American Potato Journal 57:61. 1979.

Belleisle - Breeder: Canada Department of Agric. Research Sta., Fredericton, N.B., Canada. Vendor: Canada Agriculture. Parentage: SSRPB 834c(29) x F4724 (F47024). Characteristics: high specific gravity, bruise resistant, oval shape. Resistance: common scab, black wart, fusarium sambucinum. Adaptation: Atlantic region of Canada. American Potato Journal 52:51-55, 1975.

Belrus (B7147-8) - Breeder: Webb, Wilson, Shumaker, USDA, University Florida, University Maine. Parentage: W245-2 x Penobscot. Characteristics: medium-high yield of long, heavily russetted tubers; late maturity, good for tablestock, french fries, high tuber solids, medium dormancy. Resistance: heat necrosis, northern root knot nematode, pinkeye; immune to PVA. Adaptation: produced primarily in Maine, Florida, valid 1996. American Potato Journal 58:111. 1978.

Berita - Breeder and vendor: Rockefeller Foundation, Mexico City, Mexico. Parentage: seedling from a self pollination of a selection of USDA Ace 25953 x USDA Ace 25959. Characteristics: medium maturity, smooth white tubers with white flesh. Resistance: high field type to late blight. American Potato Journal 36:301, 1959.

Bison (ND6634-2R) - Breeder: Johansen, North Dakota St. University. Parentage: ND4652-4R x ND5124-1R. Characteristics: not in production; medium yield of round, dark red tubers; medium maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: late blight race O, R-gene. American Potato Journal 54:189. 1974.

Blanca - Breeder: USDA, Greeley, Colo. Vendor: USDA and Colorado Agric. Expt. Sta., Fort Collins, Colo. Parentage: USDA seedling x627-164 x USDA seedling B929-32. Characteristics: smooth white skinned, oval to slightly flattened tubers, medium maturity, good culinary and chipping qualities. Resistance: scab. Similar: Katahdin. Adaptation: Colorado. American Potato Journal 38:236-239, 1961.

Blue Mac - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: Arran Victory x AND5-142. Characteristics: not in production; high yield of round, purple tubers; late maturity, good for tablestock, medium tuber solids. Resistance: moderate to late blight. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1979.

Boone - Breeder: North Carolina State College, Raleigh, and USDA, Beltsville, Maryland. Parentage: TI-5 x B231-3. Characteristics: late maturity, excellent baker, and good keeper. Resistance: late blight. Similar: Sebago. Adaptation: western areas of North Carolina. American Potato Journal 33:315-318, 1956.

Bounty - Breeder and vendor: Nebraska Agric. Expt. Sta., Lincoln. Parentage: North Dakota-136 x Nebraska 217.43-1. Characteristics: high yielding red skinned cultivar higher in solids than Red Pontiac or Red La Soda. Adaptation: Nebraska, 1960.

Brigus - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: G64-124-5p x SJ62-26-14. Characteristics: not in production; high yield of oval, purple tubers with yellow flesh; medium maturity, good for tablestock, medium tuber solids, very short dormancy. Resistance: moderate to late blight, storage rots. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1983.

Burbank - Breeder: Burbank, private. Parentage: Early Rose. Characteristics: open pollinated seedling; high yield of long, white tubers; late maturity, good for tablestock, french fries, medium solids, long dormancy; the cultivar Russet Burbank is a sport of Burbank, has replaced it in production agriculture. Resistance: common scab. USDA Circ. 741, 1946. 1976.

Butte (A6371-2) - Breeder: Pavek et al., USDA, University Idaho, Washington State University, Oregon State University. Parentage: A492-2 x Norgold Russet. Characteristics: high yield of long, russet tubers; late maturity, good for tablestock, french fries, medium tuber solids, medium dormancy, common garden cultivar, valid 1996. Resistance: immune to PVX, net necrosis caused by pea leaf roll virus. American Potato Journal 65:685. 1977.

Calgold (AD7267-1) - Breeder: Voss, Pavek, University California, USDA. Parentage: Butte x A6680-5. Characteristics: not in production; high yield of long, lightly russetted tubers; late maturity, good for tablestock, medium tuber solids. Resistance: verticillium wilt. University of California Research Reviews, 1986, Issue 17. 1987.

Calrose (USDA 672-26) - Breeder: Clark, USDA. Parentage: Ackersegen x Katahdin. Characteristics: not in production; high yield of long, white tubers; late maturity, good for tablestock. Resistance: late blight, R-gene. American Potato Journal 23:343. 1946.

CalWhite (A76147-2) - Breeder: Voss, Pavek, University California, USDA. Parentage: Pioneer x BC8370-4. Characteristics: very high yield of oblong, white tubers; medium-late maturity, good for tablestock, medium tuber solids, short dormancy, high in Vitamin C. Resistance: fusarium tuber rot. Adaptation: produced primarily in California, valid 1996. USDA Cultivar release notice, not dated. 1995.

Campbell 11 (BR6863-3) - Breeder: Nickeson, Campbell Institute. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: not in production; high yield of round white tubers; maturity late, good for chips, medium tuber solids. Resistance: golden nematode, late blight, R-gene, verticillium wilt. American Potato Journal 54:121. 1977.

Campbell 12 (BR6626-5) - Breeder: Nickeson, Campbell Institute. Parentage: Raritan x B5413-1. Characteristics: extinct; high yield of oval, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: late blight, R-gene. American Potato Journal 54:121. 1978.

Campbell 13 (BR6862-2) - Breeder: Nickeson, Campbell Institute. Parentage: Wauseon x B5042-2. Characteristics: medium-high yield of oblong, white tubers; medium maturity, good for chips, medium tuber solids. Resistance: late blight, R-gene, golden nematode, net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in Maine, valid 1996. American Potato Journal 54:121. 1978.

Campbell 14 (BR7093-23) - Breeder: Reeves, Nickeson, University Maine, Campbell Institute. Parentage: BR5960-9 x ND5737-3. Characteristics: not in production; high yield of round, white tubers; late maturity, good for tablestock, chips, medium tuber solids, medium dormancy. Resistance: verticillium wilt, net necrosis caused by pea leaf roll virus. American Potato Journal 62:215. 1985.

Canoga - Breeder: Plant Breeding Department, Cornell University Ithaca, New York. Parentage: Albion x Katahdin. Characteristics: good yielder, tubers keep shape, no net necrosis, mealy baker, does not slough when boiled, has fine flavor. Resistance: leaf hoppers and tarnished plant bugs. Similar: Smooth Rural. Adaptation: northeastern United States. American Potato Journal 28:672-674, 1951.

Canso - Breeder: Agric. Expt. Sta., Fredericton, New Brunswick, Canada. Vendor: Experimental Farm. Parentage: (Solanum demissum x Earlaine x Katahdin x Katahdin x Katahdin x Katahdin) x Katahdin. Characteristics: high starch content, very attractive tubers. Resistance: common races of late blight. Similar: Katahdin. Adaptation: eastern Canada. American Potato Journal 28:697-698, 1951. 1951.

Canus - Breeder: USDA, and Canada Department of Agric., Lacombe, Alta., Canada. Parentage: Greeley seedling 9-11 x USDA seedling 24642. Characteristics: high yield, tubers round to oblong, white, medium early. Adaptation: western Canada. American Potato Journal, 26:326-330, 1949.

Caribe (F69026) - Breeder: Young, DeJong, Ag. Canada, New Brunswick. Parentage: F55066 x USDA X96-56. Characteristics: medium-high yield of oblong, purple tubers; early maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced in Atlantic Canada, valid 1996. American Potato Journal 61:281. 1981.

Cariboo - Breeder: Canada Department of Agric., Fredericton, N.B. Parentage: SSRPB 1256A (23) (Black) x K113-1 (Krantz). Characteristics: pink eyes with some pink splashing at eye end of tuber. Resistance: phoma rot, verticillium wilt, common scab. Adaptation: British Columbia, Canada. American Potato Journal 45:247-249, 1968.

Carlton (FS6222) - Breeder: Russell et al., Ag. Canada, Saskatchewan, New Brunswick, Alberta. Parentage: F47024 x F55069. Characteristics: medium yield of oblong, white tubers; early maturity, good for tablestock, low tuber solids. Resistance: PVX. Adaptation: prairie provinces of Canada, valid 1996. American Potato Journal 60:599. 1982.

Cascade (WN48-1) - Breeder: Hoyman, Washington State University. Parentage: B3820-14 x PI 214372. Characteristics: high yield of oblong, white tubers; medium maturity, good for tablestock, french fries, medium tuber solids. Resistance: net necrosis caused by pea leaf roll virus, verticillium wilt. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. American Potato Journal 47:261. 1969.

Castile (B7592-1) - Breeder: Webb, Sieczka, USDA, Cornell University. Parentage: Peconic x F107-30. Characteristics: high yield of oblong, white tubers; late maturity, good for tablestock, french fries, medium tuber solids. Resistance: golden nematode, corky ringspot, pinkeye, fusarium tuber rot. Adaptation: produced primarily in New York, valid 1996. American Potato Journal 68:453. 1991.

Catoosa (TL6279) - Breeder: Dykstra; USDA, University Tennessee, Louisiana State University. Vendor: USDA Louisiana Agric. Expt. Sta., Baton Rouge and Tennessee Agric. Expt. Sta., Knoxville. Parentage: seedling selection from TL 1859 selfed TL 1859 is derived from cross of Red Pontiac x USDA-seedling X96-56. Characteristics: extinct; high yield of oval, red tubers; medium maturity, good for tablestock, low tuber solids. Resistance: common scab, late blight, R-gene. Similar: Pontiac. Adaptation: southern states. American Potato Journal 38:300-303, 1961.

Cayuga - Breeder: USDA, Beltsville, Maryland and Cornell University, Ithaca, New York. Parentage: Hindenburg x Katahdin. Characteristics: russet skin, shallow eyes, high quality. Resistance: scab and some resistance to fusarium wilt, late blight. Adaptation: regionally, central New York. American Potato Journal 23:315-329, 1946. 1945.

Centennial Russet (WNC285-146) - Breeder: Twomey, Hoyman, Colorado State University, USDA. Parentage: Nooksack x WN12-3. Characteristics: medium yield of oblong, heavily russetted tubers; medium maturity, good for tablestock, medium tuber solids, long dormancy. Resistance: fusarium tuber rot. Adaptation: produced primarily in Colorado, southern California, valid 1996. American Potato Journal 54:603. 1976.

Century Russet (A74212-1E) - Breeder: Mosley, Pavek, Oregon State University, USDA. Parentage: A6789-7 x A6680-5. Characteristics: high yield of long, russet tubers; late maturity, good for tablestock, medium solids, medium dormancy. Resistance: verticillium wilt, common scab. Adaptation: produced primarily in Oregon, Texas, valid 1996. 1995.

Chenango - Breeder: Cornell University, Ithaca, New York. Parentage: United States seedling 46110 x BXS-1, BXS-1 Solanum demissum derivative. Characteristics: early maturity, tubers smoother than Irish Cobbler. Resistance: late blight. Adaptation: restricted to valleys in central New York. American Potato Journal 24:331-335, 1947. 1946.

Cherokee - Breeder: USDA, Beltsville, Maryland; released jointly by USDA, Iowa State College, and Purdue University. Parentage: USDA seedling 96-56 x USDA 528-170. Characteristics: medium early. Resistance: scab, late blight, mild mosaic, net necrosis. Adaptation: muck soils of Iowa, Indiana, and Minnesota. American Potato Journal 31:53-58, 1954. 1953.

Chieftain (Ia 57410-10) - Breeder: Iowa State University, Ames. Vendor: Certified Potato Seed Growers. Parentage: La 1354 x Ia 1027-18. Characteristics: oval shaped tubers with less depth than width; bright red skin color. Resistance: moderate to scab and moderate field resistance to late blight. Adaptation: north central and southern United States. American Potato Journal 45:293-296, 1968.

Chinook (F4775) - Breeder: Canada Agric. Research Sta., Lethbridge, Alberta, and Fredericton, N.B., Canada. Vendor: Res. Sta., Lethbridge. Parentage: USDA X96-56 x Menominee. Characteristics: feathered to lightly russetted skin, midseason maturity, good cooking and processing quality. Resistance: common scab. Adaptation: irrigated areas of western Canada. American Potato Journal 43:1-5, 1966.

Chipbelle (B6987-148) - Breeder: Webb, USDA, University Florida, Michigan State University. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: medium yield of round, white tubers; late maturity, good for chips, not in production. 1981.

Chipeta (AC80545-1) - Breeder: Holm, Pavek, Colorado State University, USDA, University Idaho. Parentage: WNC612-13 x Wischip. Characteristics: high yield of round, white tubers; late maturity, good for chips, high tuber solids, long dormancy. Resistance: verticillium wilt, net necrosis caused by pea leaf roll virus, early blight. Adaptation: produced primarily in the western United States, valid 1996. 1993.

Chippewa (USDA 42672) - Breeder: Clark, USDA. Parentage: USDA 40568 x USDA 24642. Characteristics: high yield of oblong, white tubers; early maturity, good for tablestock, chips, low tuber solids. Resistance: net necrosis caused by pea leaf roll virus; immune to PVX. Adaptation: muck soils, produced primarily in the northeastern United States, valid 1996. American Potato Journal 8:121. 1933.

Chisago - Breeder: Minnesota Agric. Expt. Sta., Saint Paul, Minnesota. Parentage: Irish Cobbler x MN13-1 [Russet Burbank 66-1 (Katahdin selfed)]. Characteristics: early, round white, excellent tuber type. Adaptation: widely for early maturity. American Potato Journal 26:264-269, 1949.

Coastal Chip (B9792-157) - Breeder: Haynes et al., USDA, Rutgers University, Correll University. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: not in production; medium yield of oval, white tubers; medium-late maturity, good for chips, medium tuber solids, short-medium dormancy. Resistance: PVA, golden nematode, heat necrosis. Adaptation: mid Atlantic United States. American Potato Journal 69:515. 1990.

Coastal Russet (B9596-2) - Breeder: Sieczka, Webb, Wilson, Cornell University, USDA, University Florida. Parentage: Russet Burbank x B8281-5. Characteristics: high yield of long, russet tubers; medium maturity, good for tablestock, low tuber solids, short-medium dormancy. Resistance: net necrosis caused by pea leaf roll virus, common scab. Produce primarily in Atlantic Canada, northeastern United States, valid 1996. American Potato Journal 65:407. 1988.

Columbia Russet - Breeder: Scott, private. Parentage: open pollinated seedling of Wee McGregor. Characteristics: not in production; medium-high yield of oblong, russet tubers; early-medium maturity. Resistance: common scab. USDA Circ. 741, 1946. 19. 19.

Conchita - Breeder and vendor: Rockefeller Foundation, Mexico City, Mexico. Parentage: seedling from self pollination of a selection of USDA Acc. 25953 x USDA Acc. 25959. Characteristics: medium maturity, tubers white skinned and yellow fleshed, oblong. Resistance: high field resistance to late blight. Adaptation: central Mexico, 1959.

Conestoga (G712-1) - Breeder: Johnston et al., Ag. Canada, University Guelph. Parentage: G7063 x G6652. Characteristics: medium yield of oblong, white tubers, very early maturity, good for tablestock, chips, medium tuber solids. Resistance: net necrosis caused by pea leaf roll virus, common scab. Adaptation: produced primarily in the upper midwest of the United States, the prairie provinces of Canada, valid 1996. American Potato Journal 60:193. 1982.

Cortland (NY DFC-1) - Breeder: Reddick, Cornell. Parentage: Unnamed seedling x Menominee. Characteristics: medium yield of oblong, white tubers; medium maturity, good for tablestock. Resistance: late blight, R-gene. Extinct. American Potato Journal 27:1. 1947.

Crystal (ND8891-3) - Breeder: Johansen, North Dakota St. University. Parentage: Cascade x ND7196-18. Characteristics: not in production; medium yield of oval, white tubers; medium maturity, good for chips, medium tuber solids. Resistance: PVX, common scab. American Potato Journal 59:131. 1980.

Cupids - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: N150-3 x Wauseon. Characteristics: not in production; high yield of oval, lightly russetted tubers with light yellow flesh; medium-late maturity, good for tablestock, medium tuber solids. Resistance: golden nematode. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1986.

Dakchip (ND8888-2) - Breeder: Johansen et al., North Dakota St. University. Parentage: Cascade x Norchip. Characteristics: not in production; medium-high yield of round, white tubers; medium maturity, good for chips, medium tuber solids, short dormancy. Resistance: late blight, R-gene. American Potato Journal 57:567. 1979.

Dakota Chief (Red Pontiac) - Breeder and vendor: H.D. Long and Son, Park River, North Dakota. Parentage: sport out of Pontiac 1941-2. Characteristics: redder tuber skin than Triumph or Pontiac. Resistance: drought. Similar: Pontiac. Adaptation: most potato areas, 1947.

Dazoc - Breeder and vendor: Hort. Department, University of Nebraska, Agric. Expt. Sta., Lincoln. Parentage: Triumph (Nebraska Str. 22) x Nebraska 49.40-3 (Minnesota 5-10-3-23-2 x Minnesota 29.32-1-3-4). Characteristics: dark red, very early tubers, smoother and of better culinary quality than Red Warba; commercially accepted in irrigated areas of central Nebraska. National Potato Breeding 23 Annual Report p.161. 1953.

Delta Gold (USDA 47156) - Breeder: Reeves, Webb, USDA, University Maine. Parentage: Earlaine x USDA 45208. Characteristics: not in production; high yield of round, white tubers with yellow flesh; medium-late maturity, good for tablestock, medium tuber solids, short dormancy. Resistance: immune to PVA, net necrosis caused by pea leaf roll virus. American Potato Journal 57:429. 1979.

Delus (B73-18) - Breeder: F.J. Stevenson, R.V. Akeley, and E.P. Brasher, USDA, Beltsville, Maryland, and Delaware Agric. Expt. Sta., Newark. Parentage: Mohawk x USDA seedling X96-56. Characteristics: attractive appearance and high solid content. Resistance: late blight. Similar: Katahdin. American Potato Journal 31:410-413, 1954.

Denali (AK37-68-19-70) - Breeder: Dearborn, USDA, University Alaska. Parentage: B5141-6 (Lenape) x AK1-62-90-64. Characteristics: not in production; high yield of oblong, white tubers; late maturity, good for tablestock, chips, high tuber solids, long dormancy. Adaptation: wide. American Potato Journal 56:373. 1978.

DeSota - Breeder: Miller, Louisiana State University. Parentage: Triumph x Katahdin. Characteristics: vigorous, upright plants, small leaves, medium early; red to pinkish-red tubers, round with medium deep eyes. Resistance: mild mosaic. Similar: Triumph. Adaptation: western, mid-western, and southern United States and California. American Potato Journal 25:89-91, 1948.

DeSota - Breeder: Miller, Louisiana State University. Parentage: Triumph x Katahdin. Characteristics: extinct; high yield of oval, early-medium maturity, good for tablestock, vigorous, upright plants, small leaves, red to pinkish-red tubers, round with medium deep eyes. Resistance: PVX. Similar: Triumph. Adaptation: western, mid-western, and southern United States and California. American Potato Journal 25:89-91. 1944.

Donna (F74123) - Breeder: Young et al., Ag. Canada, New Brunswick. Parentage: Raritan x Agitato. Characteristics: not in production; high yield of oblong, white tubers with yellow flesh; medium-late maturity, good for tablestock, medium tuber solids, short dormancy, bred for export. Resistance: PVX, golden nematode, verticillium wilt. American Potato Journal 65:509. 1986.

Earlaine - Breeder: United States Department of Agric. Parentage: Irish Cobbler x USDA Seedling 43055. Characteristics: early, tubers white, smooth, shallow eyed, excellent market quality. Resistance: mild mosaic and net necrosis. Adaptation: Maine. United States Department of Agric. Circ. 493, 1938.

Early Gem (Early Russet) - Breeder and vendor: USDA, Beltsville, Maryland, and released jointly with the University of Idaho and North Dakota Agric. College, Moscow, Idaho, and Fargo, North Dakota, respectively. Parentage: Russet Burbank x X96-56 x Russet Burbank. Similar: Russet Burbank. Characteristics: Russet skin, early, generally small vines, three to five tubers per hill, scab resistant. Adaptation: Idaho, North Dakota, Colorado, and parts of California. American Potato Journal 32:79-85. March, 1955.

Early Rose - Breeder: Bresee. Parentage: open pollinated seedling of Garnet Chili. Characteristics: not in production; medium yield of oblong, light red tubers; early maturity, good for tablestock, medium tuber solids, ancestor of many early cultivars. USDA Circ. 741, 1946. 1867.

Eide Russet (MN10874) - Breeder: Lauer, University Minnesota. Parentage: WNC325-1 x Norgold Russet. Characteristics: not in production; medium yield of oblong, russet tubers; medium maturity, good for tablestock. Resistance: common scab. 1989.

Elba (NY59) - Breeder: Thurston, Cornell University. Parentage: D29-10 x NY27. Characteristics: high yield of round, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: golden nematode, late blight, early blight, verticillium wilt. Adaptation: peat soils. Adaptation: produced primarily in New York, valid 1996. American Potato Journal 62:653. 1985.

Empire - Breeder: Cornell University, Ithaca, New York. Parentage: Rural New Yorker 2 x Azk 3. Azk. 3-Solanum demissum derivative. Characteristics: late, smooth tubers, large crop. Resistance: late blight. Adaptation: central and western New York. American Potato Journal 22:357-362, 1945. 1942.

Eramosa (F72217) - Breeder: Coffin et al., Ag. Canada, Ontario. Parentage: F52047 x F60019. Characteristics: high yield of oblong, white tubers; early maturity, good for tablestock, low tuber solids. Resistance: common scab. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 66:293. 1987.

Erendira - Breeder: USDA, Beltsville, Maryland. Vendor: USDA and Rockefeller Foundation, Mexico City, Mexico. Parentage: USDA Acc. 24891 x USDA seedling X527-170. Characteristics: round to oval tubers, white skinned, pale streaks of pink through white flesh. Resistance: high field resistance to late blight. Adaptation: central Mexico. American Potato Journal 36:300, 1959.

Erie - Breeder: Ohio Agric. Expt. Sta., Wooster. Vendor: T.B. Buell. Parentage: received from USDA as Seedling 47101 from cross of 45146 x Earlaine. Similar: Teton. Characteristics: now grown only in limited area in Pennsylvania; similar to Katahdin in maturity and shape, but not in anthocyanin pigment. American Potato Journal 22:29-32, 1945.

Erik (MN4536) - Breeder: Lauer, University Minnesota. Parentage: ND4524-7R x ND4620-1. Characteristics: not in production; high yield of oblong, red tubers; early maturity, good for tablestock, low tuber solids. Resistance: late blight, verticillium wilt. Potato Varieties in Canada, 1991, New Brunswick Department of Agric. 1983.

Erli-Red (MN50.4-52-40) - Breeder: Ben Picha, Grand Forks, N.D. Parentage: MN43.23-6 x MN43.17-16. Characteristics: extinct; medium yield of round, dark red tubers; early maturity, low tuber solids, free from knobs, hollow heart growth cracks and oversize. Resistance: black-spot, air checking and abrasion, internal defects. Similar: Bounty. Adaptation: northern states of the United States. American Potato Journal 38:78. 1960.

Essex - Breeder: Cornell University, Ithaca, New York. Parentage: NY ABX-6 x Redd 1152, F2, Triumph. ABX-6-Solanum demissum derivative. Characteristics: high yield, midseason to late in maturity. Resistance: late blight, and some field resistance to leafroll. Adaptation: northeastern United States. American Potato Journal 27:1-10, 1950. 1946.

Excel (Nebraska 82 49-1X) - Breeder: Werner, University Nebraska. Parentage: Nebraska 143.47-16 x Nebraska 59.41-P1. Characteristics: extinct; medium yield of oblong, red tubers; medium-early maturity, good for tablestock. National Potato Germplasm Report 28:127. 1957.

Fillmore - Breeder: Cornell University, Ithaca, New York. Parentage: Rural New Yorker 2 x NY Azk-3 Sib of Empire. Characteristics: plants slow to emerge; large plants with rogose leaflets; terminal leaves purplish tinged; tubers with pinkish blush. Resistance: late blight; tolerance to drought. Adaptation: central and western New York. American Potato Journal 27:1-10, 1950.

Frontier Russet (A74114-4) - Breeder: Pavek et al., USDA, University Idaho, others. Parentage: A66102-16 x WN330-1. Characteristics: medium yield of oblong, russet tubers; medium maturity, good for tablestock, french fries, medium tuber solids, long dormancy. Resistance: verticillium wilt, fusarium tuber rot, common scab. Adaptation: produced primarily in the western United States, Atlantic Canada, valid 1996. American Potato Journal 68:525. 1990.

Fundy - Breeder and vendor: Canadian Department of Agric. Fredericton, N.B, Canada. Parentage: Keswick x USDA seedling X96-56. Characteristics: midseason, white tubers with good appearance, excellent cooking and baking quality. Resistance: late blight (R1 gene) and virus A. Adaptation: northern potato growing areas. American Potato Journal 37: 274-277, 1960.

Garnet Chili - Breeder: Goodrich, private. Parentage: open pollinated seedling of Rough Purple Chili. Characteristics: not in production; medium yield of oblong, light red tubers; late maturity, good for tablestock, important ancestor of many North American cultivars. USDA Circ. 741, 1946. 1953.

Gemchip (BR7093-24) - Breeder: Pavek et al., USDA, University Idaho, others. Parentage: BR5960-9 x ND5737-3. Characteristics: high yield of oval, white tubers; late maturity, good for chips, medium tuber solids, medium dormancy. Resistance: verticillium wilt, fusarium tuber rot, net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in the western United States, valid 1996. American Potato Journal 68:461. 1989.

Genesee (NY78) - Breeder: Plaisted, Cornell University. Parentage: M348-45 x Katahdin. Characteristics: high yield of round, white tubers; late maturity, good for tablestock, low tuber solids. Resistance: golden nematode, verticillium wilt. Adaptation: produced primarily in New York, valid 1996. American Potato Journal 70:897. 1993.

Glenmeer - Breeder: Cornell University, Ithaca, New York. Parentage: NY ABX-6 x Redd 1152 (F2), Triumph, ABX-3-Solanum demissum derivative. Characteristics: high yield, very late in maturity, red tubers. Resistance: late blight. Adaptation: central New York. American Potato Journal 27:1-10, 1950. 1946.

Golden - Breeder: Clark, USDA. Parentage: USDA 43106 x USDA 43543. Characteristics: extinct; medium-high yield of round, white tubers with yellow flesh; late maturity, good for tablestock. American Potato Journal 8:121. 1935.

Goldrus (B8972-1) - Breeder: Webb et al., USDA, others. Parentage: B7583-19 x B7160-4. Characteristics: not in production; medium yield of oblong, heavily russetted tubers; early-medium maturity, good for tablestock. 1984.

Goldrush (ND1538-1Russ) - Breeder: Johansen et al., North Dakota State University. Parentage: ND450-3Russ x Lemhi Russet. Characteristics: medium-high yield of oblong, russet tubers; medium maturity, good for tablestock, french fries, medium tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced primarily in the midwestern, western United States, valid 1996. American Potato Journal 71:809. 1992.

Grand Falls (F5609) - Breeder: Young, Ag Canada, New Brunswick. Parentage: F48034 x SSRPB1682C (1). Characteristics: not in production; high yield of oblong, white tubers; medium-late maturity, good for starch, high tuber solids. Resistance: fusarium tuber rot, sambucinum. American Potato Journal 43:323. 1965.

Green Mountain - Breeder: Alexander, University Vermont. Parentage: Excelsior x Dunmore. Characteristics: high yield of oblong, white tubers; late maturity, good for tablestock, high tuber solids, long dormancy. Resistance: fusarium tuber rot, blackleg, verticillium wilt. Adaptation: produced primarily in the northeastern United States, Atlantic Canada, valid 1996. USDA Circ. 741, 1946. 1985.

Haig (Nebraska 223.48-1X) - Breeder: Werner, University Nebraska. Parentage: Cayuga x MN43.39-6-40. Characteristics: not in production; medium yield of oblong, white tubers; very early maturity, good for tablestock, low tuber solids. Resistance: PVX, common scab. National Potato Germplasm Report 28:128. 1957.

Hampton (Q54-15) - Breeder: Plaisted, Cornell University. Parentage: NY48 x NY51. Characteristics: high yield of round, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: golden nematode, verticillium wilt. Adaptation: produced primarily in New York, valid 1996. American Potato Journal 62:455. 1985.

Harford (NY CSF-11) - Breeder: Reddick, Cornell University. Parentage: Russet Rural x NY AFY15. Characteristics: extinct; high yield of oval, white tubers; late maturity, good for tablestock. Resistance: late blight, R-gene. American Potato Journal 27:8. 1947.

Highlat Russet (B8934-2) - Breeder: Dearborn, USDA, University Alaska. Parentage: B7680-6 x B7196-25. Characteristics: not in production; high yield of oblong, russet tubers; late maturity, good for tablestock, medium tuber solids. American Potato Journal 58:177. 1980.

HiLite Russet (78-LCI) - Breeder: Loosli, private. Parentage: uncertain possibly Nooksack x Norgold Russet. Characteristics: medium yield of oblong, russet tubers; early maturity, good for tablestock, medium tuber solids, long dormancy. Resistance: net necrosis caused by pea leaf roll virus, common scab, hollow heart. Adaptation: produced primarily in Atlantic Canada. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1987.

Hi-Plains (Nebraska 302.50-5) - Breeder: OKeefe, University Nebraska. Parentage: USDA X528-170 x Kasota. Characteristics: extinct; medium-high yield of oblong, lightly russetted tubers; medium-late maturity, good for tablestock, chips, low tuber solids. Resistance: common scab. American Potato Journal 42:361. 1965.

Houma - Breeder: United States Department of Agric. Parentage: Charles Downing x Katahdin. Characteristics: white, high yielding, good quality, market and cooking. Resistance: mild mosaic, net necrosis, leaf roll. Adaptation: New England and New York. US Department of Agric. Circ. 420, 1936.

Hudson (NY41) - Breeder: Plaisted, Cornell University. Parentage: NIF-1 x 56N18-4. Characteristics: not in production; very high yield of oblong, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: golden nematode. American Potato Journal 50:212. 1972.

Hunter (F5350) - Breeder: Davies et al., Ag. Canada, New Brunswick. Parentage: F4823 x SSRBP834C (29). Characteristics: not in production; high yield of oval, white tubers; medium-late maturity, good for tablestock, medium tuber solids. Resistance: late blight, R-gene, blackleg, verticillium wilt, corky ringspot; immune to PVX, PVA. American Potato Journal 40:275. 1961.

Huron (F1711-9) - Breeder: Johnston et al., Ag. Canada, New Brunswick. Parentage: Hindenburg x Sebago. Characteristics: not in production; high yield of round, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: common scab. American Potato Journal 35:715. 1958.

Idita Red (AK18-69-6-71) - Breeder: Carling, University Alaska. Parentage: Rode Errsteling x Red Beauty. Characteristics: not in production; high yield of oblong, red tubers with yellow flesh; early maturity, good for tablestock, low tuber solids, long dormancy. American Potato Journal 66:741. 1989.

Irish Cobbler - Breeder: private. Characteristics: high yield of round, white tubers with deep eyes, early maturity, good for tablestock, low tuber solids, short dormancy, the predominant cultivar in Japan, known as Danshakuimo, valid 1996. Resistance: PVA. Adaptation: produced primarily in the upper midwest of the United States. USDA Circ. 741, 1946.

Islander (AF186-5) - Breeder: Reeves, Akeley, others, University Maine. Parentage: Chipbelle x Norchip. Characteristics: not in production; high yield of oblong, white tubers; medium maturity, good for tablestock, chips, medium tuber solids. Resistance: golden nematode, common scab, early blight, net necrosis caused by pea leaf roll virus. American Potato Journal 61:543. 1984.

Itasca (MN12567) - Breeder: Lauer, University Minnesota. Parentage: MN304.72-10 x ND58-3. Characteristics: high yield of round, white tubers; late maturity, good for tablestock and chips, medium tuber solids. Resistance: common scab. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. 1994.

Jemseg (F67072) - Breeder: Young et al., Ag. Canada, New Brunswick. Parentage: Sable x F55069. Characteristics: medium yield of oblong, white tubers; early maturity, good for tablestock, medium tuber solids. Resistance: common scab. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 56:325. 1978.

Jersey Redskin - Breeder: USDA. Vendor: University of Tenn. Characteristics: a fall potato University of Tenn. Bul. 148, 1933.

Jewel (121P) - Breeder: Pratt, private. Parentage: Sebago x Stately. Characteristics: extinct; medium-high yield of oval, white tubers; medium-late maturity, good for chips. American Potato Journal 46:83. 1969.

K N I K - Breeder: Alaska Expt. Sta., Palmer. Vendor: Alaska Certified Seed Growers. Parentage: Arctic Seedling Green Mt. x MN56-1. Characteristics: smooth skin, shallow eye, high yield, large, long, oval, solid tubers. Adaptation: Alaska. American Potato Journal 30:148-149, 1953.

Kanona (NY71) - Breeder: Plaisted, Cornell University. Parentage: Peconic x GN bulk pollen. Characteristics: high yield of round, white tubers; late maturity, good for chips and tablestock, medium tuber solids, medium dormancy. Resistance: golden nematode. Adaptation: produced primarily in the northeastern United States and Atlantic Canada, valid 1996. American Potato Journal 66:145. 1988.

Kasota - Breeder: Minnesota Agric. Expt. Sta., Saint Paul. Parentage: Bliss Triumph x Selection 29-13. Characteristics: medium early, red tubers, maintains tuber type under wide range of conditions. Adaptation: on heavier silt loam soils. American Potato Journal 20:25-27, 1943.

Katahdin (USDA 42667) - Breeder: Clark, USDA. Parentage: USDA 40568 x USDA 24642. Characteristics: high yield of round, white tubers; late maturity, good for tablestock, medium tuber solids, medium dormancy, historically the standard for round, white fresh market production. Resistance: PVA, PVX, PVY, net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in the northeastern United States, Atlantic Canada, valid 1996. American Potato Journal 8:121. 1932.

Kennebec - Breeder: USDA. Parentage: USDA B127 x X96-56. Characteristics: white, high yield, tubers elliptical to oblong, eyes shallow, good quality. Resistance: late blight, mild mosaic and net necrosis. Adaptation: northern United States. American Potato Journal 25:351-361, 1948.

Keswick - Breeder: Canadian Dominion Expt. Sta., Fredericton, New Brunswick, Canada. Vendor: Experimental Farm. Parentage: F1020-1 (Solanum demissum x Earlaine x Earlaine x Earlaine) x Green Mountain. Characteristics: high starch content, tendency to grow oversize on rich soils. Resistance: common races of late blight. Similar: Chippewa. Adaptation: eastern Canada. American Potato Journal 28:698-699, 1951. 1951.

Krantz (MN9648) - Breeder: Lauer, Miller, others, University Minnesota, Texas A and M University. Parentage: MN366.65-3 x G6743-5. Characteristics: medium yield of oblong, russet tubers; medium maturity, good for tablestock, french fries, medium solids, short dormancy. Resistance: common scab, hollow heart, verticillium wilt, late blight. Adaptation: produced primarily in the northeastern United States, Atlantic Canada, valid 1996. American Potato Journal 65:387. 1985.

LaBelle (LA01-38) - Breeder: Fontenot, Louisiana State University. Parentage: B5461-4 x B5141-6 (Lenape). Characteristics: high yield of oblong, white tubers; medium-late maturity, good for tablestock, chips, low tuber solids, medium dormancy. Resistance: hollow heart, heat necrosis. Adaptation: produced primarily in Nebraska, valid 1996. American Potato Journal 68:13. 1989.

LaChipper (L91-78) - Breeder: Miller et al., Louisiana State University. Parentage: Cayuga x Green Mountain. Characteristics: high yield of round, white tubers; medium maturity, good for tablestock, chips, medium tuber solids. Resistance: late blight. Adaptation: produced primarily in the upper midwest, northeastern regions of the United States, valid 1996. American Potato Journal 40:130. 1962.

Lake - Breeder: USDA. Parentage: Richters Jubel x USDA 44537. Characteristics: extinct. 1945.

Langlade (W718) - Breeder: Peloquin, University Wisconsin. Parentage: Kennebec x W631. Characteristics: high yield of round, white tubers; medium maturity, good for tablestock, medium tuber solids. Resistance: common scab. Adaptation: produced primarily in the upper midwest, northeastern regions of the United States, valid 1996. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1985.

LaRouge (L42-45) - Breeder: Miller et al., Louisiana State University. Parentage: LA02-5 x LA02-5. Characteristics: high yield of round, red tubers; medium-late maturity, good for tablestock, low tuber solids. Resistance: common scab. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. American Potato Journal 40:130. 1962.

LaSalle - Breeder: Miller, Louisiana State University. Parentage: Chippewa x inbred seedling of Triumph. Characteristics: extinct; high yield of oval, white tubers; early-medium maturity, good for tablestock, medium vigorous and upright plants; tubers white, semi-flat, slightly oblong, shallow eyes. Resistance: PVX. Similar: Katahdin. Adaptation: Virginia and Maryland. American Potato Journal 25:89-91, 1948. 1948.

LaSoda - Breeder: Miller, Louisiana State University. Parentage: Triumph x Katahdin. Characteristics: not in production; high yield of oblong, white tubers; medium maturity, good for tablestock, medium tuber solids, medium dormancy, red skinned mutant of this cultivar, named Red LaSoda, has replaced it in commerce; medium-vigorous plant, upright, medium leaves; bright pinkish-red tubers semi-round to slightly oblong; medium to shallow eyes. Resistance: mosaic. Similar: Pontiac. Adaptation: all potato growing areas. American Potato Journal 25:89-91, 1948. 1948.

Lemhi Russet (A68678-1) - Breeder: Pavek et al., USDA, University Idaho. Parentage: Pioneer x A63126-8. Characteristics: not in production; high yield of long, russet tubers; late maturity, good for tablestock, french fries, high tuber solids, short dormancy. Resistance: common scab, net necrosis caused by pea leaf roll virus. American Potato Journal 58:619. 1981.

Lenape (B5141-6) - Breeder: Akeley et al., USDA, Pennsylvania State University. Parentage: Delta Gold x B3672-3. Characteristics: not in production; medium yield of round, white, flattened tubers; medium maturity, good for chipping, high tuber solids, short dormancy, release rescinded due to high glycoalkaloid content in tubers. Resistance: late blight, R-gene, PVX, net necrosis caused by pea leaf roll virus. American Potato Journal 45:142. 1967.

Madison - Breeder: Cornell University, Ithaca, New York. Parentage: Earlaine x AMY-4, AMY-4-Solanum demissum derivative. Characteristics: determinate growth, yield equals Katahdin, tendency for tubers to hollow-heart. Resistance: late blight. Adaptation: central New York. American Potato Journal 27:1-10, 1950. 1947.

Mainechip (AF875-16) - Breeder: Reeves et al., University Maine. Parentage: AF186-2 x AF84-4. Characteristics: medium yield of round, white tubers; medium maturity, good for chips, tablestock, high tuber solids, medium dormancy. Resistance: net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in Maine, New Brunswick, valid 1996. American Potato Journal 71:237. 1991.

Mainestay (AF1060-2) - Breeder: Reeves et al., University Maine. Parentage: AF431-9 x AF431-9. Characteristics: high yield of round, white tubers; medium-late maturity, good for tablestock. Resistance: net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in Maine, valid 1996. 1995.

Manota - Breeder: North Dakota Agric. Expt. Sta., Fargo. Vendor: University of Manitoba. Parentage: Minnesota 11-1-2-1 (Early Ohio, Keeper, and Silverskin) x Minnesota 9-4 (Warba and Katahdin). Similar: Cobbler. Characteristics: shallow eyed, smooth, slightly flattened and elongated. Adaptation: northern central United States and prairie provinces of Canada. American Potato Journal 30:50-52, 1953.

Marygold - Breeder: USDA and the University of Maryland, College Park. Vendor: W. Deberry, Oakland, Maryland. Parentage: Earlaine x USDA 45208. Characteristics: yellow flesh, smooth, high yield, responds to chemical treatment for breaking rest period. Adaptation: Coastal Plain. American Potato Journal 26:2532, 1949. 1949.

Mason - Breeder: Warren Mason, Berlin, Philadelphia. Parentage: a white sport selected from Russet Rural. Characteristics: was principal cultivar in Somerset County, but became infected with leaf roll, obsolete. Similar: other White Rural selections. 1940.

Maverick - Breeder: Reeves, University Maine. Parentage: B6330-3 x A6334-20. Characteristics: not in production; high yield of oblong, lightly russetted tubers; medium maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: common scab, acid scab, silver scurf, net necrosis caused by pea leaf roll virus, late blight, R-gene, PVX. Potato Varieties in Canada, 1991, New Brunswick Department of Agric. 1986.

McCormick - Breeder: McCormick, private. Characteristics: extinct, late maturity. Resistance: wart. USDA Circ. 741, 1946. 1982.

Menominee - Breeder: Michigan State College, East Lansing, and the USDA. Vendor: Certified Seed Growers. Parentage: Richters Jubel x Seedling 44537. Characteristics: high yield, white skin, tendency toward resetting, cubical tubers, eyes medium deep. Resistance: scab, late blight, and mild mosaic. Adaptation: north central region. American Potato Journal November, 1944.

Merrimack (B355-44) - Breeder: USDA, Beltsville, Maryland, and New Hampshire Agric. Expt. Sta., Durham. Vendor: Colby Brothers. Parentage: Saranac x X96-56. Characteristics: Resistance: high to late blight and ring rot. Adaptation: general, except in north. American Potato Journal 32:3 March, 1955.

Mesaba - Breeder: Minnesota Agric. Expt. Sta., Saint Paul. Parentage: Russet Rural x Set. 41-1. Characteristics: early, smooth, rural type tubers, upright productive vine. Adaptation: short seasons and peat lands. American Potato Journal 15(4):89-91, 1938.

Michibonne (MS709) - Breeder: Thompson, Michigan State University. Parentage: IA902-3 x IA872-4. Characteristics: extinct. 1977.

Michigami - Breeder: Thompson, Michigan State University. Parentage: IA90 x Emmet. Characteristics: extinct. 1977.

Michigold (MS704-10Y) - Breeder: Chase et al., Michigan State University. Parentage: Atlantic x bulk pollen. Characteristics: not in production; medium yield of round, white tubers with yellow flesh; medium maturity, good for tablestock, medium tuber solids, short dormancy. Resistance: early blight. American Potato Journal 69:629. 1988.

Michimac - Breeder: Thompson, Michigan State University. Parentage: IA902-3 x Emmet. Characteristics: not in production. 1977.

Mirton Pearl (N135-55) - Breeder: Proudfoot, Ag. Canada, Newfoundland. Parentage: Mira x F53018. Characteristics: not in production; very high yield of oblong, white tubers with deep eyes, medium maturity, good for tablestock, medium-high tuber solids. Resistance: moderate to late blight. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1975.

Mohawk - Breeder: Cornell University, Ithaca, New York, and the USDA. Parentage: Green Mountain x Katahdin. Characteristics: tubers flattened oblong, eyes shallow, skin white flaked; excellent cooking quality. Resistance: mild mosaic. Adaptation: New England and New York. American Potato Journal, April, 1943.

Monona (B3620-1) - Breeder: Stevenson et al., USDA, Frito-Lay. Parentage: B1268-46 x B1299-15. Characteristics: medium yield of oblong, white tubers; medium maturity, good for chips, low tuber solids. Resistance: PVY, PVA. Adaptation: produced throughout the United States, Canada, valid 1996. American Potato Journal 42:253. 1964.

Mouraska (LP8058) - Breeder: Freve, Ag. Canada, Quebec. Parentage: Hudson x F59103. Characteristics: high yield of oblong, white tubers; early-medium maturity, good for tablestock, early chipping, low tuber solids. Adaptation: produced primarily in Quebec, valid 1996. Potato Varieties in Canada, 1991, New Brunswick Department of Agric. 1990.

Nampa (A63126-2) - Breeder: Pavek et al., USDA, University Idaho. Parentage: A589-65 x Norgold Russet. Characteristics: not in production; high yield of oblong, russet tubers; late maturity, good for tablestock, french fries, medium tuber solids, medium dormancy. Resistance: common scab, net necrosis caused by pea leaf roll virus, hollow heart, storage rots. American Potato Journal 50:296. 1973.

Navajo - Breeder: USDA, Greeley, Colorado. Vendor: USDA and Colorado Agric. Expt. Sta., Ft. Collins, Colorado. Parentage: USDA seedling X627-126 x USDA seedling B 929-32. Characteristics: good yield, high cooking and chipping quality, medium maturity, smooth white skin with shallow eyes. Resistance: scab and common race of late blight. Similar: Katahdin. Adaptation: Colorado, 1958.

Nemarus (B9540-62) - Breeder: Goth et al., USDA. Parentage: B7160-4 x B7610-1. Characteristics: not in production; high yield of oblong, russet tubers; medium-late maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: golden nematode, PVX, net necrosis caused by pea leaf roll virus, fusarium tuber rot. American Potato Journal 66:703. 1985.

Nipigon (F60051) - Breeder: Johnston et al., Ag. Canada, Ontario. Parentage: F53026 x F51043. Characteristics: not in production; high yield of oblong, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: PVX, PVY, late blight, R-gene. American Potato Journal 55:107. 1976.

Niska (W848) - Breeder: Lynch et al., Ag. Canada, Alberta, University Wisconsin. Parentage: Wischip x B5141-6 (Lenape). Characteristics: medium yield of oval, white tubers; late maturity, good for chips, tablestock, high tuber solids, medium dormancy. Resistance: common scab, PVS. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 68:143. 1991.

Nooksack (WN168) - Breeder: Hoyman and Holland, USDA. Parentage: Kennebec x A501-13. Characteristics: medium yield of oblong, flat, russet tubers; late maturity, good for french fries, tablestock, high tuber solids, very long dormancy. Resistance: verticillium wilt, net necrosis caused by pea leaf roll virus, common scab. Adaptation: produced primarily in the western United States, valid 1996. American Potato Journal 51:99. 1973.

Norchief (ND5778-2R) - Breeder: Johansen et al., North Dakota State University. Parentage: ND4468-1R x Redkote. Characteristics: not in production; high yield of round, dark red tubers; early-medium maturity, good for tablestock, medium tuber solids. Resistance: common scab. American Potato Journal 46:298. 1968.

Norchip (ND5899-1) - Breeder: Johansen et al., North Dakota State University. Parentage: ND4731-1 x M5009-2. Characteristics: medium yield of round, white tubers; medium maturity, good for chips, tablestock, medium tuber solids, short dormancy, predominant chipping cultivar in North America until about 1990. Adaptation: produced throughout the United States, Canada. American Potato Journal 46:254. 1968.

Nordak (ND457-1-10) - Breeder: Johansen et al., North Dakota State University. Parentage: ND457-1 x ND457-1. Characteristics: not in production; medium yield of oblong, white tubers; early maturity, good for tablestock, chips, medium tuber solids. Resistance: PVY. American Potato Journal 35:774. 1957.

NorDonna (ND1871-3R) - Breeder: Johansen et al., North Dakota State University. Parentage: ND206-1R x ND821-6R. Characteristics: medium yield of round, dark red tubers; medium maturity, good for tablestock, low tuber solids, medium dormancy. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. 1995.

Norgleam (ND457-1-16) - Breeder: Johansen et al., North Dakota State University. Parentage: ND457-1 x ND457-1. Characteristics: not in production; high yield of oblong, white tubers; early maturity, good for tablestock, chips, medium tuber solids. Resistance: PVY. American Potato Journal 35:774. 1957.

Norgold Russet - Breeder: Johansen, North Dakota State University. Parentage: A119-1 x ND2475-8. Characteristics: medium-high yield of oblong, russet tubers; early maturity, good for tablestock, medium tuber solids, short dormancy, predominant early tablestock, russet cultivar in the United States until about 1985. Resistance: scab. Similar: Russet Burbank. Adaptation: produced primarily in Texas, 1996. American Potato Journal 47:201. 1964.

NorKing Russet (ND388-1 Russ) - Breeder: Johansen et al., North Dakota State University. Parentage: Nooksack x ND9567-2 Russ. Characteristics: medium-high yield of oblong, heavily russetted tubers; medium maturity, good for french fries and tablestock, medium tuber solids, long dormancy. Resistance: common scab, verticillium wilt. Adaptation: produced primarily in the western United States, Atlantic Canada, valid 1996. American Potato Journal 63:701. 1985.

Norkota - Breeder: USDA. Parentage: Rural New Yorker x Katahdin. Characteristics: extinct; high yield of oblong, white tubers; good for tablestock. USDA Circ. 741, 1946. 1933.

Norland (ND2906-1R) - Breeder: Johansen et al., North Dakota State University. Parentage: RedKote x ND626. Characteristics: medium-high yield of round, light red tubers, very early maturity, good for tablestock, low tuber solids, very short dormancy; two darker red mutants of Norland, Red Norland and Dark Red Norland are the predominant early red skinned cultivars in the United States, Canada. Resistance: common scab. American Potato Journal 36:12. 1957.

NorQueen Russet (ND671-4Russ) - Breeder: Johansen et al., North Dakota State University. Parentage: WN330-1 x ND9567-2Russ. Characteristics: medium-low yield of oblong, flattened, heavily russetted tubers; early maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced primarily in North Dakota, valid 1996. 1993.

NorValley (ND2417-6) - Breeder: Novy, North Dakota State University. Parentage: Norchip x ND860-2. Characteristics: medium yield of round, white tubers; medium maturity, good for chips, medium tuber solids, capable of producing chips directly from cold storage. Resistance: common scab, hollow heart. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. 1996.

NorWis (FL657) - Breeder: Cipar, Frito-Lay. Parentage: RD289-18 x Monona. Characteristics: high yield of oblong, white tubers; medium-late maturity, good for chips, medium tuber solids, short dormancy. Resistance: PVX, PVY, pea leaf roll virus. Adaptation: produced primarily in the upper midwest of the United States, valid 1996. American Potato Journal 67:371. 1990.

OAC Ruby Gold (G8160-11RY) - Breeder: Ali-Khan et al., Ag. Canada, Ontario. Parentage: Rhinered x Rose Gold. Characteristics: medium-high yield of oblong, red tubers with yellow flesh; medium maturity, good for tablestock, medium tuber solids, medium dormancy. Resistance: common scab, verticillium wilt. Adaptation: produced primarily in Ontario, valid 1996. American Potato Journal 73:301. 1994.

OAC Temagami (G8160-6R) - Breeder: Ali-Khan et al., Ag. Canada, Ontario. Parentage: Rhinered x Rose Gold. Characteristics: not in production; medium-high yield of round, dark red tubers; medium maturity, good for tablestock, medium tuber solids, medium dormancy. Resistance: moderate to common scab, verticillium wilt. American Potato Journal 73:305. 1994.

Oceania - Breeder: Webb et al., USDA, University Florida, Virginia. Parentage: DT5997-1R x B5283-5. Characteristics: not in production; high yield of round, white tubers; medium maturity, good for tablestock. Resistance: PVA, PVY. 1981.

Ona - Breeder: USDA, Beltsville, Maryland. Parentage: USDA seedlings B3021-3 x B2968-31. Characteristics: medium oblong tubers, white skin, shallow eyes. Resistance: late blight, scab, and verticillium wilt and immune from mild mosaic. Similar: Katahdin. Adaptation: Minnesota, Maine, and Florida. American Potato Journal, 1962, 1961.

Onaway - Breeder: Michigan State University, East Lansing. Parentage: Katahdin x B9G-56 (parentage of B9G-56 is 3895 x Earliana). Characteristics: upright vine; vigorous growth for early cultivar; best yielding early cultivar. Resistance: common scab; field resistance to late blight. Similar: Irish Cobbler. Adaptation: Bay Company, Michigan early potato regions.

Oneida (W623) - Breeder: Peloquin, University Wisconsin. Parentage: W285 x W231. Characteristics: not in production. Badger Commentator 29:3. 1976.

Ontario - Breeder: Cornell University, Ithaca, New York, the USDA. Parentage: Richters Jubel x USDA 44537. Characteristics: high yielding, white, oblong tubers, shallow eyes. Resistance: scab and late bright. Adaptation: western New York and Wisconsin. American Potato Journal, 1946.

Oromonte (USDA 46125) - Breeder: Twomey, USDA, Colorado State University. Parentage: USDA 43106 x Katahdin. Characteristics: extinct; medium-high yield of oblong, white tubers with yellow flesh; late maturity, good for chips. Resistance: PVY. American Potato Journal 45:297. 1967.

Osage - Breeder: USDA, Beltsville, Maryland, and the Iowa Agric. Expt. Sta., Ames. Vendor: Ben Picha. Parentage: USDA Seedling X245-186 x Katahdin. Characteristics: smooth, long tubers, midseason maturity, high quality, low set, tendency to hollow heart, long dormancy. Resistance: scab. Adaptation: central and northeastern muck areas. American Potato Journal 31: 299-304, 1954.

Osseo - Breeder: University of Minnesota, Institute of Agriculture, University Farm, Saint Paul. Parentage: Cobbler x selection 56-1. Characteristics: extra early, white tubers, upright vine, uniform size of tubers. Adaptation: short seasons and early market gardens. University of Minnesota Expt. Sta. Rpt., 19. 1952.

Pawnee - Breeder: USDA, Colorado Potato Expt. Sta., Greeley. Parentage: Rural New Yorker 2 x Katahdin. Characteristics: good yield, good market quality. Adaptation: Colorado. USDA Circ. 665, March, 1943.

Peconic (NY1) - Breeder: Peterson, Cornell University. Parentage: LNA-106 x Katahdin. Characteristics: not in production; high yield of oval, white tubers; early-medium maturity, good for tablestock, medium tuber solids. Resistance: golden nematode. American Potato Journal 43:450. 1966.

Peerless - Breeder: Bresee, private. Parentage: open pollinated seedling of Garnet Chili. Characteristics: extinct; high yield of round, white-splashed pink tubers; late maturity, good for tablestock. Potato Handbook, 1959. Potato Assoc. of Amer. 1962.

Pele (35-5) - Breeder: Ito, University Hawaii. Parentage: 57-AH-9 x Anita. Characteristics: extinct; high yield of round, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: late blight. American Potato Journal 55:573. 1978.

Pennchip (PA4QV-30) - Breeder: Mills, Pennsylvania State University. Parentage: PA3RD-5 x PA3WH-9. Characteristics: not in production; medium-high yield of round, white tubers; late maturity, good for chips, low tuber solids, long dormancy. Resistance: late blight, R-gene, PVA. American Potato Journal 41:54. 1963.

Pennigan - Breeder: Pennsylvania State University, University Park. Parentage: Russet Rural x McCormick. Characteristics: obsolete. Similar: Russet Rural. Adaptation: same as Russet Rural. 1938.

Pennrose - Breeder: Mills, Pennsylvania State University. Parentage: Norland x B4494-6. Characteristics: not in production; tubers are round with red skin, good for tablestock. 1981.

Penobscot (B3563-2) - Breeder: Simpson and Akeley, University Maine, USDA. Parentage: USDA X927-3 x Katahdin. Characteristics: not in production; medium-high yield of oblong, white tubers; early-medium maturity, good for tablestock, chips, high tuber solids. Resistance: PVA. American Potato Journal 41:140. 1963.

PHX 523 - Breeder and vendor: Ben Picha, Box 816, Grand Forks, North Dakota. Parentage: B1396-2 x ND4096-1. Resistance: scab. Similar: Russet Burbank. Adaptation: wide. 1966.

PHX 541 - Breeder and vendor: Ben Picha, Box 816, Grand Forks, North Dakota. Parentage: Ia 801-10 x B2368-4. Resistance: scab and virus XI. Similar: Katahdin. Adaptation: wide. 1966.

PHX 591 - Breeder and vendor: Ben Piclia, Box 816, Grand Forks, North Dakota. Parentage: B1396-2 x ND4096-1. Resistance: scab and viruses X and Y. Similar: White Rose. Adaptation: wide. 1966.

Pink Pearl (S.J. 62 26-9) - Breeder: Canada Department of Agric., St. Johns West, Newfoundland, Canada. Parentage: Ultimus x Katahdin. Characteristics: late maturity, red skin, white fleshed, long tuber. Resistance: potato wart races 1, 2, and 6; blight; and blackleg. Similar: Ultimus. Adaptation: Newfoundland, Canada, 1970.

Pioneer - Breeder: Miller and OKeefe, University Nebraska. Parentage: MN113-1-45 x Nebraska 225.43-1. Characteristics: not in production; high yield of oblong, light red tubers; medium maturity, good for tablestock, french fries, medium tuber solids. American Potato Journal 40:81. 1963.

Placid - Breeder: Cornell University, Ithaca, New York. Parentage: ABX-6 x AFY-5; both are Solanum demissum derivatives. Characteristics: yield equivalent to Katahdins, midseason maturity, tendency for rough tubers in some areas, almost a carrier for virus Y. Resistance: late blight. Adaptation: northeastern United States. American Potato Journal 24:319-336, 1947. 1946.

Platte (Nebraska 4.56-9) - Breeder: OKeefe and Werner, University Nebraska. Parentage: Redbake x Nebraska 29.47-2. Characteristics: extinct; medium-high yield of round, white tubers; medium-late maturity, good for chips, tablestock, medium tuber solids, medium dormancy. Resistance: common scab. American Potato Journal 42:361. 1965.

Plymouth - Breeder: USDA, Beltsville, Maryland, and North Carolina State College, Raleigh. Parentage: Mohawk x 96-56. Characteristics: medium maturity. Resistance: late blight and scab. Similar: Mohawk. Adaptation: Maine and tidewater areas of North Carolina and Long Island, 1956.

Pontiac - Breeder: Michigan State College, East Lansing, and USDA. Vendor: Certified Seed Growers. Parentage: Bliss Triumph x Katahdin. Characteristics: high yielding, red skin type. Similar: Triumph. Adaptation: Red River Valley, Michigan, and Minnesota. Michigan Agric. Expt. Sta. Bul. 21(3):1939.

Portage (CS7697-24) - Breeder: Reeves et al., University Maine, Campbell Institute. Parentage: Raritan x BR6831-5. Characteristics: not in production; medium-high yield of oval, white tubers; early maturity, good for tablestock, low tuber solids, medium dormancy. Resistance: late blight, R-gene, verticillium wilt, net necrosis caused by pea leaf roll virus. American Potato Journal 72:681. 1992.

Potomac - Breeder: University of Maryland and the USDA, College Park. Vendor: W. Deberry, Oakland, Maryland. Parentage: Rural New Yorker x Katahdin. Characteristics: smooth skin, shallow eyes, late. Resistance: late blight and tipburn. Adaptation: northeastern United States. American Potato Journal 22: 261-266, 1945. 1945.

Prestile (CS7635-4) - Breeder: Reeves et al., University Maine, Campbell Institute. Parentage: BR6293-12 x B5421-3. Characteristics: not in production; high yield of round, white tubers; late maturity, good for tablestock, low tuber solids, long dormancy. Resistance: PVX, net necrosis caused by pea leaf roll virus. American Potato Journal 71:89. 1991.

Pride - Breeder: Pratt, private. Parentage: Sebago x Ag56. Characteristics: extinct; medium yield of round, white tubers; early-medium maturity, good for tablestock, low tuber solids. Resistance: common scab. American Potato Journal 46:88. 1968.

Progress - Breeder: Department of Hort. Agric. Expt. Sta., University of Nebraska, Lincoln. Vendor: Nebraska Certified Potato Growers Cooperative. Parentage: USDA 0183 x Minnesota 5-10-3-8. Characteristics: scab resistant tubers that have red skin color, do not crack at harvest time, medium to small size, average cooking quality. Resistance: common scab. Adaptation: regionally as a late crop in western irrigation areas. 1949.

Ptarmigan (F76080) - Breeder: Lynch et al., Ag. Canada, Alberta. Parentage: ND6993-13 x F59103. Characteristics: medium yield of oval, white tubers; early maturity, good for chips, tablestock, low tuber solids, medium dormancy. Resistance: moderate to early blight, common scab. Adaptation: produced primarily in the western United States, western Canada, valid 1996. American Potato Journal 71:387. 1993.

Pungo - Breeder: Virginia Truck Expt. Sta., Norfolk and USDA, Beltsville, Maryland Parentage: 96-44 x 528-170. Characteristics: medium maturity, rapid growth. Resistance: late blight. Adaptation: Virginia and Maine. American Potato Journal 30:323-326, 1954.

Quaggy Joe (AF1470) - Breeder: Reeves et al., University Maine. Parentage: CS7589-8 x Portage. Characteristics: medium-high yield of round, white tubers; medium maturity, good for tablestock, low tuber solids. Resistance: net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in Maine, valid 1996. 1996.

Ranger Russet (A7411-2) - Breeder: Pavek et al., USDA, University Idaho. Parentage: Butte x A6595-3. Characteristics: high yield of long, russet tubers; late maturity, good for french fries, tablestock, high tuber solids, medium dormancy. Resistance: PVY, verticillium wilt, fusarium tuber rot, hollow heart, net necrosis caused by pea leaf roll virus; immune to PVX. Adaptation: produced primarily in the western United States, valid 1996. American Potato Journal 69:483. 1991.

Raritan (F54059) - Breeder: Campbell and Young, Rutgers University. Parentage: F45019 x SSRBP834C (29). Characteristics: not in production; high yield of oblong, lightly russetted tubers; medium-late maturity, good for chips, high tuber solids. Resistance: PVX, PVA, late blight, R-gene. American Potato Journal 47:264. 1970.

Red Beauty - Breeder: University of Wisconsin, Madison. Vendor: Starks Farms. Parentage: NDI x Cayuga. Characteristics: upright growth habit; medium season; smooth, bright red tubers. Resistance: verticillium wilt. Similar: Triumph. Adaptation: midwestern United States. American Potato Journal 32:346-349, 1955.

Red Cloud (Nebraska A143.70-2) - Breeder: OKeefe et al., University Nebraska. Parentage: Nebraska 185.70-1 x Superior. Characteristics: medium yield of oval, dark red tubers; medium maturity, good for tablestock, medium tuber solids, very long dormancy. Resistance: common scab, verticillium wilt, early blight. Adaptation: produced primarily in Nebraska, southwest United States, valid 1996. American Potato Journal 70:301. 1992.

Red Gold (G7015-11RY) - Breeder: Coffin et al., Ag. Canada, Ontario. Parentage: G68211 x G6521-4RY. Characteristics: not in production; medium yield of round, red tubers with yellow flesh; early-medium maturity, good for tablestock, medium tuber solids, short dormancy. Resistance: common scab. American Potato Journal 65:49. 1987.

Red LaSoda - Breeder: Webb and Miller, USDA, Louisiana State University. Vendor: Certified Seed Growers. Parentage: red skinned sport of LaSoda. Characteristics: more intense skin coloration than LaSoda; otherwise identical. Similar: LaSoda. Adaptation: south and early northern areas. American Potato Journal 31:40, 1954. 1953.

Red McClure - Breeder: private institution. Parentage: red skinned sport of Improved Peachblow. Characteristics: not in production; high yield of oblong, red tubers; late maturity, good for tablestock. USDA Circ. 741, 1946. 1910.

Red Norland - Parentage: darker red sport of Norland. Characteristics: see Norland. Adaptation: produced throughout the United States, Canada, valid 1996.

Red Pontiac - Parentage: red skinned sport of Pontiac. Characteristics: see Pontiac, used as a garden cultivar throughout the United States, Canada, valid 1996.

Red Ruby (MN13035) - Breeder: Lauer, University Minnesota. Parentage: Bison x MN11.76-1. 1994.

Red Warba - Breeder: Minnesota Agric. Expt. Sta., Saint Paul. Parentage: mutation from Warbs. Characteristics: extra early, round, red type; short season adaptation, or for early market use. American Potato Journal 16:7.

Redbake (Nebraska 2644-1) - Breeder: Werner, University Nebraska. Parentage: Nebraska 10.42-1 x Nebraska 1.41-2. Characteristics: extinct; tubers are round with red skin, medium maturity, good for tablestock, chips, high tuber solids. Potato Handbook, 1959. Potato Assoc. of Amer. 1956.

Redburt - Breeder: Obert Grover, Glyndon, Minnesota, and University of Minnesota, Saint Paul. Parentage: Satapa sport. Characteristics: smooth, red skinned; high yield. Similar: LaSoda. Adaptation: wide. American Potato Journal 30:8, 1953.

Reddale (MN8757) - Breeder: Lauer, University Minnesota. Parentage: Erik x Chieftain. Characteristics: high yield of round, red tubers; medium maturity, good for tablestock, low tuber solids. Resistance: common scab, verticillium wilt, late blight, R-gene. Adaptation: produced primarily in Minnesota, valid 1996. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1984.

Redglo - Breeder: Department of Hort., University of Nebraska, Agric. Expt. Sta., Lincoln. Vendor: selected seed growers in western Nebraska. Parentage: segregate from North Dakota cross 176 (Pontiac x 11-1-3-2) x Nebr. 49.40-2 (Minnesota 5-10-3-23-2 x Minnesota 29.32-1-34). Characteristics: dark red tubers, medium to large, medium to late, intermediate dry matter. Adaptation: western Nebraska, late crop irrigated and dry land. 1954.

Redkote - Breeder and vendor: Ben Picha, Grand Forks, North Dakota. Parentage: 116-10 x Pontiac (116-10 is 528-229). Characteristics: rosy red color, very smooth, high uniformity of tubers without oversize. Resistance: internal browning, scab resistant. Similar: Red Pontiac. Adaptation: mid-central states.

Redsen (ND146-4R) - Breeder: Johansen et al., North Dakota State University. Parentage: ND8978-3R x ND9403-20R. Characteristics: medium-high yield of round, dark red tubers; early-medium maturity, good for tablestock, low tuber solids, short dormancy. Resistance: common scab, late blight, R-gene, very susceptible to storage rots. Adaptation: produced in limited locales throughout the United States, Canada, valid 1996. American Potato Journal 61:549. 1983.

Redskin - Breeder: USDA, Beltsville, Maryland. Vendor: USDA and Texas Agric. Expt. Sta., College Station, Texas. Parentage: Pontiac x USDA seedling B400-1. Characteristics: high yield, red skin, late maturity. Resistance: scab, virus A, net necrosis from leaf roll. Adaptation: wide. 1960.

Reliance (F29-1) - Breeder: USDA. Vendor: Ben Picha, Grand Forks, North Dakota. Parentage: early Gem x Tawa. Characteristics: early as Clobber, high yielding and delayed sprouting. Resistance: late blight, scab, X immune. Adaptation: wide. 1963.

Rhinered (W729R) - Breeder: Peloquin, University Wisconsin. Parentage: W639 x Norchief. Characteristics: not in production; medium yield of round, red tubers; early-medium maturity, good for tablestock, medium tuber solids. Resistance: common scab, verticillium wilt. Potato Varieties in Canada, 1991, New Brunswick Department of Agric. 1981.

Rideau (G6457-5R) - Breeder: Johnston and Rowberry, Ag. Canada, Ontario. Parentage: Viking x Picha 177-13R. Characteristics: medium-high yield of round red tubers; late maturity, good for tablestock, low tuber solids. Resistance: verticillium wilt, common scab. Adaptation: produced primarily in Atlantic Canada, valid 1996. American Potato Journal 57:47. 1971.

Rosa (NY61) - Breeder: Plaisted et al., Cornell University. Parentage: Wauseon x J171-8Adg. Characteristics: not in production; high yield of oval, white-splashed pink tubers; late maturity, good for chips, tablestock, medium tuber solids, medium dormancy. Resistance: golden nematode, late blight, R-gene. American Potato Journal 58:451. 1981.

Rose Gold (G7010-19RY) - Breeder: Coffin et al., Ag. Canada, Ontario. Parentage: Abnaki x G6521-4RY. Characteristics: not in production; medium yield of round, red tubers with yellow flesh; medium-late maturity, good to tablestock, medium tuber solids, medium dormancy. Resistance: common scab. American Potato Journal 65:325. 1988.

Rukat - Breeder: W.P. Raleigh, Clyde, Kansas. Vendor: Arthur J. Pratt. Parentage: Russet Rural x Katahdin. Characteristics: purple in stems, rural type foliage. Resistance: misshapen tubers, susceptible to hollow heart and scab. Similar: Rural. 1954.

Rural New Yorker - Breeder: Carman, private. Characteristics: extinct; high yield of oblong, white tubers; late maturity, good for tablestock. USDA Circ. 741, 1946. 1988.

Rushmore - Breeder: Louisiana State University, Baton Rouge. Vendor: Melvin Rominsky, Rhinelander, Wisconsin. Parentage: Katahdin x Green Mountain. Characteristics: bright russet color; an oblong, flat potato, sprouts green. Similar: Burbank. Adaptation: northern tier of United States to south if irrigated. American Potato Journal January or February, 1957.

Russet Arenac - Breeder: Thompson, University Michigan. Parentage: russetted sport of Arenac. Characteristics: not in production; see Arenac. 1965.

Russet Bake-King - Breeder: Lawrence, Cornell University. Parentage: russetted sport of Bake-King. Characteristics: not in production; see Bake-King. American Potato Journal 71:127. 1994.

Russet Burbank - Breeder: Sweet, private. Parentage: russetted sport of Burbank. Characteristics: the predominant cultivar in the United States and Canada for tablestock, french fries, see Burbank for more information. USDA Circ. 741, 1947. about 1917.

Russet Norkotah (ND1534-4Russ) - Breeder: Johansen et al., North Dakota State University. Parentage: ND9526-4Russ x ND9687-5Russ. Characteristics: medium-low yield of long, russet tubers; very early maturity, good for tablestock, low tuber solids, medium dormancy, most prominent of the early russet tablestock cultivars, valid 1996. Resistance: common scab, very susceptible to verticillium wilt. Adaptation: produced throughout the United States, Canada, valid 1996. American Potato Journal 65:597. 1987.

Russet Nugget (TC582-1) - Breeder: Holm et al., Colorado State University, Texas A and M University. Parentage: Krantz x AND71609-1. Characteristics: medium-high yield of long, flattened, heavily russetted tubers; late maturity, good for tablestock, french fries, high tuber solids, medium dormancy. Resistance: common scab, verticillium wilt, early blight. Adaptation: produced primarily in Colorado, valid 1996. American Potato Journal 69:331. 1989.

Russet Rural - Breeder: unknown. Priestley: russetted sport of Rural New Yorker. Parentage: Unknown. Characteristics: see Rural New Yorker. USDA Circ. 741, 1946.

Russet Sebago - Breeder: University of Wisconsin, Madison. Parentage: clonal selection out of Sebago. Characteristics: russet tuber. Resistance: common scab and late blight. Similar: Sebago. Adaptation: north central adaptation, 1947.

Russette (B7583-6) - Breeder: Webb et al., USDA, University Maine, others. Parentage: B5141-6 (Lenape) x WN245-2. Characteristics: not in production; high yield of oblong, russet tubers; late maturity, good for tablestock, french fries, medium tuber solids, long dormancy. Resistance: verticillium wilt, pinkeye, heat necrosis; immune to PVA, necrosis caused by pea leaf roll virus. American Potato Journal 61:77. 1981.

Sable (F5653) - Breeder: Davies et al., Ag. Canada, New Brunswick. Parentage: F52094 x F47024. Characteristics: not in production; high yield of oblong, white tubers; early maturity, good for tablestock, low tuber solids. Resistance: common scab. American Potato Journal 43:154. 1964.

Saco - Breeder: USDA, Beltsville, Maryland, and the Maine Agric. Expt. Sta., Orono. Parentage: USDA seedlings 41956 x X96-56. Characteristics: high yield and dry matter content, more rough than some new cultivars. Resistance: immune from virus X, mild mosaic, and common race of late blight fungus; possibly immune to net necrosis. Similar: Green Mountain and Kennebec. American Potato Journal, 1955.

Saginaw Gold (MS002-171Y) - Breeder: Coffin et al., Ag. Canada, University Michigan, others. Parentage: MS321-38 x Michibonne. Characteristics: not in production; medium yield of oblong, white tubers with yellow flesh; medium maturity, good for tablestock, chips, medium tuber solids. American Potato Journal 66:303. 1988.

Sangre (AC67560-1) - Breeder: Twomey et al., Colorado State University USDA. Parentage: Viking x A6356-9. Characteristics: high yield of oval, red tubers; medium maturity, good for tablestock, medium tuber solids, long dormancy. Resistance: net necrosis caused by pea leaf roll virus, hollow heart. Adaptation: produced primarily in Colorado. American Potato Journal 59:435. 1982.

Saranac (USDA X336-144) - Breeder: Stevenson and Livermore, USDA, Cornell University. Parentage: President x Katahdin. Characteristics: extinct; tubers round and white, late maturing, good for tablestock. Resistance: ring rot. American Potato Journal 26:45. 1949.

Satapa - Breeder: Minnesota Agric. Expt. Sta., Saint Paul. Parentage: Red Warba x 20-4. Characteristics: medium-early, red, exceptionally round, smooth tubers, upright vine. Resistance: in field to virus X. Adaptation: general. American Potato Journal 26(7), 1949.

Sebago - Breeder: USDA. Parentage: Chippewa x Katahdin. Characteristics: good market and cooking quality. Resistance: late blight, mild mosaic, net necrosis, yellow dwarf. Adaptation: Florida, Alabama, South Carolina. USDA Cir. 503, November, 1938.

Seminole (B4469-7 or FL282) - Breeder: Stevenson et al., Frito-Lay. Parentage: Delta Gold x B3672-3. Characteristics: extinct; medium-high yield of round, white tubers; early-medium maturity, good for chips, high tuber solids. Resistance: verticillium wilt. American Potato Journal 47:35. 1969.

Seneca - Breeder: Cornell University Ithaca, New York. Parentage: Hindenburg x Katahdin. Characteristics: high yield, tendency to be rough and produce tubers in chains. Resistance: scab and some field resistance to fusarium wilt and late blight. Adaptation: central New York. American Potato Journal 23:315-329, 1946. 1945.

Sequoia - Breeder: North Carolina Agric. Expt. Sta., Raleigh, N.C., and the USDA. Parentage: Green Mountain x Katahdin. Characteristics: white tubers, high yielding, good market quality. Resistance: late blight, leaf hopper burn, flea beetle injury. Adaptation: North Carolina and Tennessee. American Potato Journal April, 1945.

Shasta (SH-1) - Breeder: Groza, private. Parentage: A69656-4 x WNC214-36. Characteristics: not in production; high yield of long, white tubers; late maturity, good for french fries, tablestock, medium tuber solids, short dormancy. Resistance: verticillium wilt, early blight. Potato Varieties in Canada, 1991, New Brunswick Department of Agric. 1990.

Shepody (F69016) - Breeder: Young et al., Ag. Canada, New Brunswick. Parentage: Bake-King x F58050. Characteristics: high yield of long, white tubers; early-medium maturity, good for french fries, medium tuber solids, medium dormancy. Resistance: net necrosis caused by pea leaf roll virus, predominant cultivar for early harvest french fry production in the United States, Canada, valid 1996. American Potato Journal 60:109. 1980.

Sheridan - Breeder and vendor: Department of Hort., Agric. Expt. Sta., University of Nebraska, Lincoln. Parentage: Triumph (Nebraska Str. 22) x Nebraska 49.40-3 (Minnesota 5-10-3-23-2 x Minnesota 29. 32-1-34). Characteristics: medium red, round, early tubers of good culinary quality, much smoother and higher dry matter than Red Warba; proven in late irrigation area of western Nebraska. 1953.

Shoshoni (A175-7) - Breeder: Sanford et al., USDA, University Idaho. Parentage: Early Gem x B2913-24. Characteristics: not in production; medium yield of round, white tubers; late maturity, good for tablestock, medium tuber solids. Resistance: common scab. American Potato Journal 41:95. 1963.

Shurchip (Nebraska 1655-1) - Breeder: OKeefe, University Nebraska. Parentage: Nebraska 226.49-1X x Nebraska 25.47-7x. Characteristics: high yield of round, lightly russetted tubers; medium maturity, good for chips, medium tuber solids, medium dormancy. Resistance: common scab. Adaptation: produced primarily in Nebraska, valid 1996. American Potato Journal 47:124. 1969.

Sierra (AD7377-1) - Breeder: Voss and Pavek, University California, USDA. Parentage: A66110-39 x Targhee. Characteristics: not in production; high yield of oblong, russet tubers; medium maturity, good for tablestock, low tuber solids. Resistance: common scab, net necrosis caused by pea leaf roll virus, hollow heart, growth cracks. University California, Research Reviews 17, 1986. 1987.

Simcoe (G6880-1) - Breeder: Johnston and Rowberry, Ag Canada, Ontario. Parentage: Peconic x B5141-6 (Lenape). Characteristics: not in production; medium yield of round, white tubers; late maturity, good for tablestock, chipping, medium tuber solids. Resistance: PVA, late blight, R-gene, net necrosis caused by pea leaf roll virus. American Potato Journal 59:39. 1981.

Sioux (Nebraska 20257-1) - Breeder: OKeefe, University Nebraska. Parentage: Nebraska 240.54-1 x Nebraska 90.49-1X. Characteristics: extinct; medium-high yield of round, red tubers; medium maturity, good for tablestock, medium tuber solids, medium dormancy. Resistance: common scab. American Potato Journal 47:163. 1969.

Snowchip (AK35) - Breeder: Dearborn, University Alaska. Parentage: Ontario x Stately. Characteristics: not in production; medium yield of oval, white tubers; medium-late maturity, good for chips, high tuber solids. American Potato Journal 52:47. 1973.

Snowden (W855) - Breeder: Peloquin, University Wisconsin. Parentage: B5141-6 (Lenape) x Wischip. Characteristics: medium-high yield of round, white tubers; late maturity, good for chips, high tuber solids, medium dormancy. Resistance: moderate to common scab, produces acceptable chips follow cold storage, predominant storage chipping cultivar since 1993, valid 1996. Potato Varieties in Canada, 1991. New Brunswick Department of Agric. 1990.

Snowdrift - Breeder: Cornell University, Ithaca, New York. Parentage: ATY-4 x Earlaine. Characteristics: early maturity, smooth tubers. Resistance: late blight. Adaptation: central New York. American Potato Journal 27:1-10, 1950. 1947.

Snowflake (ND 3324-2) - Breeder: North Dakota State University. Parentage: Kennebec x ND 457-1. Characteristics: early, high specific gravity. Resistance: virus Y in field. Similar: Kennebec. American Potato Journal vol. 40 August, 1963 and North Dakota Farm Res. vol. 21, 1961.

Somerset (AF236-1) - Breeder: Reeves et al., University Maine, University Pennsylvania. Parentage: B6097-9 x B6516-5. Characteristics: medium-high yield of oblong, white tubers; medium maturity, good for chips, medium tuber solids, medium dormancy. Resistance: early blight, late blight, R-gene. Adaptation: produced primarily in the northeastern United States, valid 1996. American Potato Journal 67:153. 1988.

Spartan Pearl (MS700-83) - Breeder: Douches et al., Michigan State University. Parentage: Atlantic x Michibonne. Characteristics: not in production; high yield of round, white tubers; medium maturity, good for tablestock, medium tuber solids, medium dormancy. American Potato Journal 69:785. 1991.

St. Johns (AF828-5) - Breeder: Reeves, University Maine. Parentage: BR6317-21 x CC14-3A. Characteristics: medium-high yield of round, white tubers; late maturity, good for tablestock. Resistance: golden nematode, corky ringspot. Adaptation: produced primarily in Maine, valid 1996. 1993.

St. Louis - Breeder and vendor: G.A. Johnson, Hermantown, Minnesota. Characteristics: probably no longer available. 1943.

Stately (A-43-10) - Breeder: Dearborn, Alaska Agr. Expt. Sta., Palmer. Parentage: Alaska 114 x X792-94. Characteristics: extinct; low yield of round, white tubers; late maturity, good for tablestock, high tuber solids, released as a home garden cultivar for Alaska; high dry matter, excellent baking or mashing. Similar: Alaska 114. American Potato Journal 38:244. 1961.

Steuben (NY81) - Breeder: Plaisted et al., Cornell University. Parentage: F9-31 x GN bulk pollen. Characteristics: not in production; high yield of oblong, white tubers; medium maturity, good for tablestock, chips, medium tuber solids, long dormancy. Resistance: golden nematode. American Potato Journal 67:239. 1989.

Suncrisp (B9792-8B) - Breeder: Haynes et al., USDA, University Florida, others. Parentage: Wauseon x B5141-6 (Lenape). Characteristics: not in production; medium-high yield of oval, lightly russetted tubers; late maturity, good for chips, high tuber solids. Resistance: golden nematode, common scab, PVY, heat necrosis. 1993.

Sunrise (CF7358-14) - Breeder: Reeves et al., University Maine, Campbell Institute. Parentage: Wauseon x B6563-2. Characteristics: high yield of round, white tubers; early maturity, good for tablestock, field delivery chip production, low-medium tuber solids, medium dormancy. Resistance: golden nematode, PVX, net necrosis caused by pea leaf roll virus. Adaptation: produced primarily in northeastern United States, Atlantic Canada, valid 1996. American Potato Journal 62:221. 1985.

Superior (AG29) - Breeder: Rieman, University Wisconsin. Parentage: USDA X96-56 x MN59.44. Characteristics: medium yield of round, white tubers; early maturity, good for tablestock, field delivery chip production, low-medium tuber solids, short dormancy. Resistance: common scab, predominant early maturing, round white tablestock cultivar. Adaptation: produced througho