Combining ability of potato parents for tuber appearance and tuber yield component traits
AUTOR(ES)
Terres, Laerte Reis, Lenz, Emerson Andrei, Rocha, Dediel, Cerioli, Murilo, Pereira, Arione da Silva
FONTE
Crop Breed. Appl. Biotechnol.
DATA DE PUBLICAÇÃO
2017-06
RESUMO
Abstract The purpose of this study was to estimate the combining ability between two groups of potato parents in early generations of selection. Twelve potato families, derived from two groups of parents crossed in a 4x3 partial diallel design, were evaluated, in a randomized complete block design with three replications. Additive effects of genes were predominant for the traits tuber shape uniformity, tuber pointiness, tuber curvature, general tuber appearance, tuber size uniformity, tuber number, total tuber yield, and average tuber weight. With regard to general combining ability, for all tuber appearance traits, the foreign parents ‘Pukara’ and ‘Asterix’, and the national parent ‘Eliza’ contributed with complementary favorable alleles. For tuber yield component traits, the foreign parent ‘Rioja’ and the national parent ‘Eliza’ were outstanding. The specific combining ability indicated ‘Pukara’/‘Eliza’ as the most promising cross for the development of superior genotypes for the traits general tuber appearance and tuber number.
Documentos Relacionados
- Combining ability analysis for grain filling duration and yield traits in spring wheat (Triticum aestivum L. em. Thell.)
- Combining ability and heterosis of relevant fruit traits of tomato genotypes for industrial processing
- Choice of common bean parents based on combining ability estimates
- Evaluation of component traits related to tuber general appearance
- COMBINING ABILITY AND GENE ACTION IN THE EXPRESSION TRAITS IN MAXIXE