|Hanneman Jr, Robert|
Submitted to: American Journal of Potato Research
Publication Type: Abstract Only
Publication Acceptance Date: June 28, 1996
Publication Date: N/A
Technical Abstract: The ability of potato cultivars to chip directly from cold storage is of particular interest, especially with the pending loss of sprout inhibitors. New sources of germplasm that are able to chip acceptably from temperatures of less than 4 C are needed. 828 accessions (PIs) representing 98 species have been screened and 25 species were identified which had some plants with chip scores of 4 or less. Approximately 270 of these PIs were reevaluated. Based on two years data, the following species are the most promising cold chipping sources: S. medians, S. okadae, S. pinnatisectum, S. raphanifolium and S. sogarandinum. The following PIs have been selected as promising based on two years data: S. capsicibaccatum PI 473458; S. huancabambense PI 498244; S. medians PI 283081, 310994, 320261, 320261, 473496; S. multiinterruptum PI 365337; S. okadae PI 498063, 498064, 498065; S. oxycarpum PI 230479; S. pinnatisectum PI 186553, 275235; S. raphanifolium PI 265862, 296126, 310998, 458384, 458408, 473466, 473467; S. sogarandinum PI 230510, 365360; S. sparsipilum PI 458386, 473385; Gp. Stenotomum-gon PI 195214; S. sucrense PI 473506; S. tarijense PI 458395, 473238, and S. toralapanum PI 472805. Selection of families for chipping ability based on prior year performance was effective.