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ARS Home » Pacific West Area » Wapato, Washington » Temperate Tree Fruit and Vegetable Research » Research » Publications at this Location » Publication #351856

Research Project: Developing New Potatoes with Improved Quality, Disease Resistance, and Nutritional Content

Location: Temperate Tree Fruit and Vegetable Research

Title: TerraRossa: A mid-season specialty potato with red flesh and skin and resistance to common scab and golden cyst nematode

item SHOCK, C - Oregon State University
item BROWN, CR - Retired ARS Employee
item SATHUVALLI, V - Oregon State University
item CHARLTON, BA - Oregon State University
item YILMA, S - Oregon State University
item HANE, D - Oregon State University
item Quick, Rich
item RYKBOST, KA - Oregon State University
item JAMES, SR - Oregon State University
item MOSLEY, AR - Oregon State University
item FEIBERT, E - Oregon State University
item Whitworth, Jonathan
item Novy, Richard - Rich
item STARK, JC - University Of Idaho
item PAVEK, M - Washington State University
item KNOWLES, R - Washington State University
item Navarre, Duroy - Roy
item MILLER, JC - Texas A&M University
item HOLM, DG - Colorado State University
item JAYANTY, SS - Colorado State University
item DEBONS, J - Potato Variety Management Institute
item VALES, I - Oregon State University
item Wang, Xiaohong
item HAMLIN, LAUNA - Washington State University

Submitted to: American Journal of Potato Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/23/2018
Publication Date: 10/1/2018
Citation: Shock, C., Brown, C., Sathuvalli, V., Charlton, B., Yilma, S., Hane, D., Quick, R.A., Rykbost, K., James, S., Mosley, A., Feibert, E., Whitworth, J.L., Novy, R.G., Stark, J., Pavek, M., Knowles, R., Navarre, D.A., Miller, J., Holm, D., Jayanty, S., Debons, J., Vales, I., Wang, X., Hamlin, L. 2018. TerraRossa: A mid-season specialty potato with red flesh and skin and resistance to common scab and golden cyst nematode. American Journal of Potato Research. 95(5):597-605.

Interpretive Summary: Potato cultivars currently available in commercial markets have many positive attributes, but typically have at least some limitations that if improved upon would benefit consumers and the industry. TerraRossa is a new mid-season specialty potato with red skin, red flesh and small-to-medium sized tubers that is a product of the Pacific Northwest Potato Variety (Tri-State) Development Program and developed by scientists at the USDA-ARS, Oregon State University, Washington State University, Texas A&M University, Colorado State University and the University of Idaho. TerraRossa provides the potato industry a high phytonutrient specialty potato with tolerance to common scab and late blight and resistance to golden cyst nematode. Potato chips made from TerraRossa tubers retain their unique red color. TerraRossa has traits that appeal to consumers, protects grower profitability and decreases yield losses due to disease and quality issues.

Technical Abstract: TerraRossa (POR01PG20-12) is a mid-season specialty potato, released by Oregon State University, and is a product of the Northwest Potato Variety (Tri-State) Development Program. This cultivar is unique among commercially available potato cultivars in that plants produce small- to medium-sized smooth, oblong- to long-shaped tubers with red skin and red flesh. TerraRossa tubers have high total antioxidant levels when compared with the ‘All Blue’ purple potato, known for its high antioxidant levels. Sensory evaluations of TerraRossa tubers have shown good culinary attributes following boiling, baking, and microwaving. Potato chips made from TerraRossa tubers retain their unique red color with high antioxidant activity compared to regular chips. TerraRossa could be a good candidate for the organic sector due to its tolerance to common scab (Streptomyces scabies) and tuber late blight (Phytophthora infestans) and its resistance to golden cyst nematode (Globodera rostochiensis). Total tuber yields of TerraRossa are similar to Dark Red Norland and less than Red LaSoda. Average tuber size (136 g) is less than both of the comparison cultivars, reflecting inherent differences in tuber size distribution.