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United States Department of Agriculture

Agricultural Research Service

Research Project: Development of Potato Varieties and Germplasm with Improved Resistances, Production Efficiencies, and Tuber Qualities for the Western U.S.

Location: Small Grains and Potato Germplasm Research

Title: Yukon Gem: A yellow-fleshed potato cultivar suitable for fresh-pack and processing with resistances to PVYO and late blight.

Authors
item Whitworth, Jonathan
item Novy, Richard
item Stark, Jeffrey -
item Pavek, Joseph -
item Corsini, Dennis -
item Love, Steven -
item Miller, J. -
item Vales, M. -
item Mosley, A. -
item Yilma, S. -
item James, S. -
item Hane, D. -
item Charlton, B. -
item Brown, Charles
item Knowles, N. -
item Pavek, M. -

Submitted to: American Journal of Potato Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: March 1, 2010
Publication Date: May 21, 2010
Repository URL: http://riley.nal.usda.gov/nal_web/digi/submission.html
Citation: Whitworth, J.L., Novy, R.G., Stark, J., Pavek, J.J., Corsini, D.L., Love, S.L., Miller, J.S., Vales, M.I., Mosley, A.R., Yilma, S., James, S.R., Hane, D.C., Charlton, B.A., Brown, C.R., Knowles, N.R., Pavek, M.J. 2010. Yukon Gem: A yellow-fleshed potato cultivar suitable for fresh-pack and processing with resistances to PVYO and late blight. Amer J Potato Res. 87:327-336.

Interpretive Summary: Yukon Gem is a yellow-fleshed tuber with a light yellow skin color, similar to the industry standard, Yukon Gold. Splashes of light red around the eyes can also be present. It was obtained from a cross between Yukon Gold and Brodick, a Scottish cultivar with yellow flesh and resistance to Potato virus Y (PVY). Yukon Gem tubers have a smaller size profile than Yukon Gold and has high resistance to PVYO (common strain) and late blight. Yukon Gem also processes well into chips and fries with a lighter color than Yukon Gold and had similar scores for texture, color, and flavor indicating that it can be used for both fresh and processing. Yukon Gem has higher resistance than Yukon Gold to tuber diseases (common scab, dry rot, late blight) and foliar diseases (PVY, Potato leafroll virus, late blight, early blight, Verticillium wilt) make it a potentially better candidate for organic production.

Technical Abstract: Yukon Gem is a yellow-fleshed, medium-maturing cultivar suitable for fresh-pack or processing which has a high level of resistance to potato virus YO and moderate resistance to foliar and tuber late blight. Multiple trials demonstrated a higher yield potential than Yukon Gold (yellow-fleshed, industry standard). Yukon Gem produces uniform attractive tubers with light yellow skin and splashes of light red around the eyes; tuber flesh pigmentation is similar to Yukon Gold. Yukon Gem was obtained from the intercrossing of Brodick and Yukon Gold at North Dakota State University (NDSU). An NDSU seedling tuber was sent and selected at Aberdeen, ID in 1995 and designated NDA5507-3YF. It advanced through the Aberdeen potato breeding program and regional trials in the western and northwestern U.S. Yukon Gem was released in 2006 by the USDA-ARS and the Agricultural Experiment Stations of Idaho, Oregon, and Washington, and is a product of the Northwest Potato Variety (Tri-State) Development Program.

Last Modified: 8/21/2014
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