Study on genetic divergence and character association for yield and its contributing characters in faba bean (Vicia faba L.) genotypes
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Date
2020
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CCSHAU,HiSAR
Abstract
The present investigation consist of 53 genotypes of faba bean that were assess from various
source and raised in RBD design with 3 replication in the rabi season of 2019-20 at Research Farm of
MAP Crop Section of Department of GPB, CCS HAU, Hisar with the objective of assessment of the
genetic variability, heritability and genetic divergence of seed yield and its contributing characters. The
results of analysis of variance indicated that the substantial genetic variability were present for seed
yield and its contributing characters. The estimates of PCV had higher in magnitude than that of
respective estimates of GCV, which suggested that the environmental factor were also influencing the
expression of the genotypes. The combined analysis of correlation coefficient analysis and path
coefficient analysis revealed that the characters, namely, no. of pods cluster per plant, no. of branches
per plant, no. of pods per plant, no. of pods per cluster, no. of seeds per pod, 100 seeds weight, pod
yield per plant, biological yield and harvest index were the major seed attributing characters and hence;
emphasis should be given to this characters while programming any plant breeding programme. The 53
genotypes were grouped into 6 clusters using Tocher’s method. The maximum intra- cluster D2 value
was recorded for cluster no. 4, which suggested that the cluster no. 4 had maximum genetic
heterogeneity among the genotypes presented in this cluster, whereas, the maximum inter- cluster D2
value was recorded for cluster no. 5 and cluster no. 6 which indicated that the genotypes present in
these two clusters had highest genetic diversity. The genotypes namely EC-32905, EC-243036, EC-
591784, HB-03, HB-19, HB-61 and Vikrant are selected on the basis of their mean performance for
different characters.