Molecular Plant Breeding 2016, Vol.7, No.20, 1
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high (>50%), moderate (20-50%), and low (<20%) as described by Stansfield (1988). High heritability value in
broad sense was observed for all characters except days to flowering which showed heritability value of 40.62%.
High heritability along with high genetic advance as percent of mean was recorded by number of secondary
branches/plant followed by yield/plot and number of pods/plant.
Figure 1 Average minimum variance dendrogram which shows the numbers of breeding lines clustered based on morphological
characters studied
2 Discussion
Variance analysis shows the existence of genetic variability among the lines from which selection can be done to
develop hybrid varieties with desirable agronomic characters. Similarly, Kumar et al. (2013) studied genetic
diversity for agro-morphological and oil quality traits in 46 genotypes of Indian mustard, and showed the presence
of considerable variability among the genotypes. Likewise, Synrem et al. (2014) studied the genetic variability in
intra specific crosses of Indian mustard Brassica juncea (L.) Czern and Coss. Genotype, indicated that significant
differences among the crosses were found for all the characters under study except length of siliqua. Significant
variation for plant height, number of primary branches/plant, number of secondary branches/plant, number of
