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United States Department of Agriculture

Agricultural Research Service

Research Project: Potato Genetic Improvement for Western U.S. Production

Location: Small Grains and Potato Germplasm Research

Title: Teton Russet: an early-maturing, dual-purpose potato cultivar having higher protein and vitamin C content, low Asparagine, and resistances to common scab and Fusarium dry rot

Authors
item Novy, Richard
item Whitworth, Jonathan
item Stark, J -
item Charlton, B -
item Yilma, S -
item Knowles, N -
item Pavek, M -
item Spear, R -
item Brandt, T -
item Olsen, N -
item Thornton, M -
item Brown, Charles
item James, S -
item Hane, D -

Submitted to: American Journal of Potato Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: November 25, 2013
Publication Date: July 18, 2014
Citation: Novy, R.G., Whitworth, J.L., Stark, J.C., Charlton, B.A., Yilma, S., Knowles, N.R., Pavek, M.J., Spear, R.R., Brandt, T.L., Olsen, N., Thornton, M., Brown, C.R., James, S.R., Hane, D.C. 2014. Teton Russet: an early-maturing, dual-purpose potato cultivar having higher protein and vitamin C content, low Asparagine, and resistances to common scab and Fusarium dry rot. American Journal of Potato Research. 91(4):380-393.

Interpretive Summary: Teton Russet is a new potato cultivar notable for its early-maturity, high merit for processing and fresh-pack, and resistance to common scab and dry rot of the tuber. This variety also has higher vitamin C and protein content than cultivars currently being utilized by the industry. It also has a lower level of the amino acid asparagine which may contribute to reduced acrylamide formation in processed potato products. Teton Russet was released in 2011 by the USDA-ARS and the Agricultural Experiment Stations of Idaho, Oregon, and Washington, and is a product of the Pacific Northwest Potato Variety (Tri-State) Development Program.

Technical Abstract: Teton Russet is an early-maturing, medium- russeted, potato cultivar with high merit for both fresh-pack and processing. In early harvest trials in the Pacific Northwest, Teton Russet had total yields similar to Russet Norkotah, and higher than Ranger Russet and Russet Burbank. Marketable yield of Teton Russet in the early harvest trials was also comparable to or higher than Russet Norkotah in Washington and Oregon, and higher than Ranger Russet and Russet Burbank at these sites, as well as in Idaho. In full-season trials, while total yield of the earlier-maturing Teton Russet tended to be lower than Ranger Russet and Russet Burbank, marketable yield was generally higher than Russet Burbank across the majority of sites due to its higher percentage of U.S. No. 1 tubers. Teton Russet is very suitable for processing, with acceptable fry color following up to 8 months of storage at 8.9°C. Uniformity of fry color was also shown to be very consistent. Teton Russet has shown statistically lower levels of the amino acid asparagine relative to Ranger Russet and Russet Burbank which may contribute to lower acrylamide levels in French fries and other processed potato products. Teton Russet is notable for having resistance to common scab (Streptomyces spp.) and Fusarium dry rot, and is moderately resistant to tuber net necrosis. Analyses have also shown Teton Russet to have significantly higher protein levels than Russet Norkotah, Ranger Russet, and Russet Burbank, as well as higher vitamin C content than Russet Norkotah and Russet Burbank. The use of the herbicide Matrix® (Trade name: Rimsulfuron) has been associated with an increased incidence of growth cracks in tubers of Teton Russet, with caution recommended in the use of this herbicide with this variety. Teton Russet was released in 2011 by the USDA-ARS and the Agricultural Experiment Stations of Idaho, Oregon, and Washington, and is a product of the Pacific Northwest Potato Variety (Tri-State) Development Program.

Last Modified: 8/22/2014
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