Selection for seed yield in segregating population (Misr 1 x Giza 3) of faba bean (Vicia faba L.)

The current study was executed at the Experimental Farm, Faculty of Agriculture, Al-Azhar University, Assiut, Egypt, during the 2016/2017, 2018/2019 and 2019/2020 seasons. The acquired results exhibited that the prospective response to selection was less than the real response to the selection of the studied characters with respect to the two selection criteria i.e. number of pods /plant and seed yield /plant. The results exhibited that the mean plants registered lower values ​​in the F3 generation and progressively increased in the next generation for the studied characters except, mean for days to maturity which scored higher values ​​in the third (F3) generation and progressively decreased in the next generation of the two selection criteria. Plant height, seed index, number of pods /plant and seed yield /plant, the mean of the bulk populations was lower than those for the selected families in the F3, F4, and F5 generations, except for the number of days to maturity where the bulk population was higher than that of the selected families in the F3, F4 and F5 generations for the two selection criteria. The phenotypic and genetic coefficients of variance registered higher values ​​in the F3 generation and progressively decreased in the next generation of the studied characters. Significant and Positive phenotypic and genotypic correlation coefficients were registered between seed yield /plant and all studied characters, except days to maturity that was negative and significant for the two selection criteriaexcept, for days of maturity, which were negative and significant for the two selection criteria. Heritability in narrow sense was high (<50%) for number of pods /plant in F4 and F5 and differed from low to moderate for the remaining characters.