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ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Publications at this Location » Publication #349812

Research Project: Resources for the Genetic Improvement of Potato

Location: Vegetable Crops Research

Title: Potato carbohydrates: what’s in the middle counts

item Bethke, Paul

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 1/20/2018
Publication Date: 2/6/2018
Citation: Bethke, P.C. 2018. Potato carbohydrates: what’s in the middle counts. In: Proceedings of Wisconsin’s Annual Potato Meeting, February 6-8, 2018, Steven's Point, WI. 31:3-10.

Interpretive Summary:

Technical Abstract: Potato is one of the world’s most important foods. Accumulation of starch in potato tubers depends on photosynthesis. Maintenance of 100% light capture per unit land area during the target growing season maximizes yields. Warm temperatures increase shoot and tuber respiration rates and depress tuber bulking rate. Water stress decreases photosynthetic rates and contributes to yield losses. Tuber starch is converted to sugars to supply stored potatoes with energy for respiration. Chip and fry quality depends on maintenance of low sucrose and invertase.