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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Sugarbeet and Potato Research » Research » Publications at this Location » Publication #134362
Title: NEW POTATO CLONES MAINTAIN LOW SUGARS IN COLD STORAGE.

Author
item SOWOKINOS, JOSEPH - UNIV OF MINNESOTA
item Glynn, Martin

Submitted to: Valley Potato Grower Magazine
Publication Type: Popular Publication
Publication Acceptance Date: 2/5/2001
Publication Date: N/A
Citation: N/A

Interpretive Summary: The accumulation of reducing sugars during cold storage of potato tubers is a serious and costly problem for producers and processors. Most, but not all, currently used potato cultivars are susceptible to "cold sweetening" and are therefore stored at warmer temperatures that can accelerate disease progression and sprouting. A major goal of potato breeding programs is the development of new potato lines that are resistant to cold sweetening. As part of an on-going program to assist potato breeders in identifying promising new cultivars, the effects of storage temperature on processing quality has been determined for a number of advanced lines submitted by both federal and non-federal potato breeding programs. In this report, the effects of storage temperature on internal reducing sugar levels and process quality of 54 advanced breeding clones after 7 months of storage at 42 and 45oF are described. These results can be used by breeders to determine which advanced lines should undergo further development in their programs.

Technical Abstract: The accumulation of reducing sugars during cold storage of potato tubers is a serious and costly problem for producers and processors. Most, but not all, currently used potato cultivars are susceptible to "cold sweetening" and are therefore stored at warmer temperatures that can accelerate disease progression and sprouting. A major goal of potato breeding programs is the development of new potato lines that are resistant to cold sweetening. As part of an on-going program to assist potato breeders in identifying promising new cultivars, the effects of storage temperature on processing quality has been determined for a number of advanced lines submitted by both federal and non-federal potato breeding programs. In this report, the effects of storage temperature on internal reducing sugar levels and process quality of 54 advanced breeding clones after 7 months of storage at 42 and 45oF are described. These results can be used by breeders to determine which advanced lines should undergo further development in their programs.