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United States Department of Agriculture

Agricultural Research Service

Research Project: EVALUATION OF PROCESSING AND STORAGE CAPABILITIES OF NEW AND ESTABLISHED POTATO GERMPLASM

Location: Sugarbeet and Potato Research

Title: Evaluation of Advanced Potato Breeding Clones for Storage and Processing Performance

Authors
item Glynn, Martin
item Sowokinos, Joseph -

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: February 16, 2010
Publication Date: February 23, 2010
Citation: Glynn, M.T., Sowokinos, J. 2010. Evaluation of Advanced Potato Breeding Clones for Storage and Processing Performance. In: Potato Research Reporting Conference Proceedings, February 23, 2010, Grand Forks, ND. 2010 CDROM.

Interpretive Summary: The accumulation of reducing sugars during cold storage of potato tubers is a serious and costly problem for producers and processors. The degree to which cultivars accumulate reducing sugars during storage determines their processing and market potential. Cultivars or advanced breeding lines with the lowest amounts of sugars are needed by the chipping industry. Those with intermediate sugar levels are used in french fry production. While those accumulating the higher sugar levels are primarily destined for the fresh or table markets. As part of an on-going program to assist potato breeders in identifying potential markets for promising new cultivars, the effects of storage temperature on sugar levels and processing qualities have been determined for a number of advanced lines submitted by both federal and non-federal potato breeding programs. In this report, the effects of postharvest storage at 48 degree F (9 degree C) on internal reducing sugar levels and process quality of 84 advanced breeding clones were determined after 3 and 7 months of storage. These results can be used by breeders to determine the future market potential of advanced potato germplasm.

Technical Abstract: The accumulation of reducing sugars during cold storage of potato tubers is a serious and costly problem for producers and processors. The degree to which cultivars accumulate reducing sugars during storage determines their processing and market potential. Cultivars or advanced breeding lines with the lowest amounts of sugars are needed by the chipping industry. Those with intermediate sugar levels are used in french fry production. While those accumulating the higher sugar levels are primarily destined for the fresh or table markets. As part of an on-going program to assist potato breeders in identifying potential markets for promising new cultivars, the effects of storage temperature on sugar levels and processing qualities have been determined for a number of advanced lines submitted by both federal and non-federal potato breeding programs. In this report, the effects of postharvest storage at 48 degree F (9 degree C) on internal reducing sugar levels and process quality of 84 advanced breeding clones were determined after 3 and 7 months of storage. These results can be used by breeders to determine the future market potential of advanced potato germplasm.

Last Modified: 4/18/2014
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