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- Title
Genetic gain from early generation selection for cold chipping genotypes in potato.
- Authors
Hayes, R. J.; Thill, C. A.
- Abstract
Abstract Early generation selection for chip colour may accelerate potato chipping cultivar development. The research objective was to measure the response from early generation selection for light potato chip colour. Progeny from 175 4x × 4x families were propagated to the field using greenhouse grown tubers or seedling transplants. Tubers from progeny were made into potato chips after 3 and 6 months' storage at 4°C. Chip colour was rated as 1 = light to 10 = dark. Genotypes were categorized as retained (≤ 4) or discarded (> 4) based on the 6-month chip colour, then field grown a second year at two locations and re-evaluated for chip colour. Positive selection responses resulted, but were lower in the seedling transplants. Interaction between genotype and environment, and genotype and storage duration reduced responses. Selected genotypes should be evaluated over multiple environments and storage conditions to insure reliable performance. Expanding variation by introgressing favourable alleles from wild species may further enhance breeding success.
- Subjects
POTATOES; POTATO chips; GENOTYPE-environment interaction
- Publication
Plant Breeding, 2003, Vol 122, Issue 2, p158
- ISSN
0179-9541
- Publication type
Article
- DOI
10.1046/j.1439-0523.2003.00776.x