Pedigree selection in pea (Pisum sativum L.).

Abstract

Two pea populations (Alaska X little Marvel) and (Alaska X Dwarf Gray Sugar) were used to improve green pod yield and some yield components trait by pedigree selection for several generations (F3, F4 and F5) with check cultivar (Markado), during three winter seasons. Highly significant differences between F3 families in both populations were detected, genotypic coefficient variation were detected for selection of green pod yield per plant. After two cycles of pedigree selection the criterion of selection was increased in population 1 and 2 by 4.98, 31.53, 32.72% and 6.23, 21.49, 20.36% compared with the bulk sample, check cv., and the best parent, respectively. Heritability in broad sense in F3 populations and two pedigree selection cycles were 96.02, 95.04, 98.38 and 96.83, 88.7, 94.17 respectively, for green pod yield per plant. Families No. 1, 10, 5, 8 and 6 had a heaviest green pod weight per plant in population 1. While, families No. 1, 5 and 10 in population 2 were attained the superiority of green pod yield per plant, compared to the bulk sample, check cv. and the best parent. Therefore, these families were recommended for use as new promising lines of pea but need more field experiments to evaluating them.