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United States Department of Agriculture

Agricultural Research Service

Title: Evaluation and Incorporation of New Sources of Wild Species Germplasm of Potato That Chip Directly from Cold Storage

item Hanneman Jr, Robert

Submitted to: Common Tater
Publication Type: Popular Publication
Publication Acceptance Date: November 14, 1995
Publication Date: N/A

Technical Abstract: The ability of potato cultivars to chip directly from storage is of particular interest, with the pending loss of sprout inhibitors. There are only a few cultivars that are able to chip directly from 45 degrees storage and none from colder temperatures without reconditioning. To identify new sources of germplasm that can chip acceptably from temperatures colder than 40 degrees, we have evaluated 828 accessions representing 98 wild and cultivated species chipping directly from 34-36 degrees after three and six months. Two hundred and seventy accessions were reassessed. Twenty-six accessions were identified as most promising with four species judged as the best. The best clones and families have been used in crosses to haploids and cultivars in an effort to incorporate cold chipping ability into cultivated background for further use in breeding and genetic studies. In initial studies, several species-haploid hybrid families have been identified whose progeny produce very acceptable chips from 34-36 degrees storage. We expect this or materials like it to be the source of new varieties which will revolutionize the chipping industry of the 21st century.

Last Modified: 3/29/2015
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