Assesment of genetic diversity in collected accession of aloe vera from Chhattisgarh using morphological characters

Abstract

The present investigation was carried out to study the genetic variability, h2, genetic advance for 8 traits in aloe vera. The experimental materials comprised of 13 genotypes of aloe vera (Aloe barbadensis) were evaluated to study the PCV, GCV, GA% and diversity pattern. Wider variability as observed for plant height (cm), leaf length (cm), no. of spines per leaf, no. of leaves per plant, no. of suckers, gel content per leaf(g). The PCV value was slightly higher than the GCV showed the slight influence of environment in the expression of the Accession. High h2 coupled with high genetic advance was recorded in plant height (cm), leaf length (cm), no. of spines per leaf, no. of suckers, gel content per leaf (g). Hence selection will be effective for these traits. The genotype was studies for the diversity and D2 statistic was done and the Accessions were grouped into four cluster. The distributing pattern indicates that the maximum numbers of genotypes (5) were into cluster IV Followed by cluster II, cluster I and cluster III. The maximum inter cluster distance was observed in between I and IV (5.350) followed by cluster IV and III (3.569) these suggest that wider diversity among the group and hybridization programme involved parents from these cluster is expected to give higher frequency of better segregator, therefore Accession 1,2,3,12,13 can be used as potential donors for hybridization programme to develop variety with higher yield.