Assessment of genetic variability in Indian bean (Lablab purpureus L.)
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Date
2011
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Publisher
MPUAT, Udaipur
Abstract
The present investigation was carried out to estimate genetic variability, character
association and path coefficient analysis among 16 genotypes of Indian beans for pod yield
per vine and its contributing characters. These genotypes were planted in Randomized Block
Design with six replications during kharif season 2010-11 at Instructional Farm, Department
of Horticulture, Rajasthan College of Agriculture, Udaipur.
Analysis of variance indicated presence of considerable variability for all the 14
characters. High GCV and PCV were recorded for pod yield per vine, average pod weight
and leaf area. High estimates of heritability along with high genetic advance as per cent of
mean were observed for pod yield per vine and pod width. Therefore, these characters can aid
in selection programme.
The results from character association indicated that pod yield per vine had significant
and positive correlation with stem diameter, number of branches per vine, average pod
weight and number of pods per vine at both the levels. Path coefficient analysis revealed that
characters viz., average pod weight, number of pods per vine, days to 50% flowering, number
of flowers per cluster, days to maturity, number of pods per clusters, stem diameter and pod
length had positive direct effect on pod yield per vine. Number of pods per vine, average pod
weight, days to maturity and number of flowers per clusters showed high and positive
indirect effect towards pod yield per vine.
On the basis of mean performance the genotypes DL-14, DL-8, DL-2 and DL-12 were
found superior in terms of high mean values of pod yield per vine. These genotypes may
further be utilized in breeding programme aimed at improving pod yield per vine in Indian
bean. All those characters which showed positive direct effect towards yield proved effective
in enhancing productivity level in Indian bean.
Description
Assessment of genetic variability in Indian bean (Lablab purpureus L.)
Keywords
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Citation
Sharma and Sarolia, 2011