Phenotypic Variability and Multiple Regression Analysis in Indian Bean (Lablab purpureus L.)

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Date
2012
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MPUAT, Udaipur
Abstract
The present investigation was carried out to estimate phenotypic variability, character association and path coefficient analysis among 15 germplasm of Indian beans for yield per vine and its contributing characters. Uniform 15 germplasm were selected in 5 villages. Analysis of variance indicated presence of considerable variability for all the 14 characters. High GCV and PCV were recorded for average pod weight, leaf area and yield per vine. High estimates of heritability along with high genetic advance as per cent of mean were observed for width of pod and yield per vine. Therefore, these characters can add in selection programme. The result from character association indicated that yield per vine had significant and positive correlation with number of branches per vine, average pod weight, seed index and number of pods per vine at both the levels. Path coefficient analysis revealed that characters viz., number of pods per vine, seed index, pod width, vine length, mean pod weight, fruit set, stem diameter and number of flowers per cluster had positive direct effect on yield per vine. Number of pods per vine, average pod weight, seed index, pod width and vine length showed high and positive indirect effect towards yield per vine. On the basis of mean performance the genotypes G14, G8 and G2 were found superior to the high mean values of yield per vine. These germplasm may further be utilized in breeding programme aimed at improving pod yield per vine in Indian bean. Result obtained from the present study based on variability parameters, correlation and path analysis revealed that selection programme based on number of pods per vine, seed index, pod width, pod length, mean pod weight, fruit set, stem diameter, leaf area, number of flowers per cluster and seeds per pod prove effective in enhancing productivity level in Indian bean.
Description
Phenotypic Variability and Multiple Regression Analysis in Indian Bean (Lablab purpureus L.)
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Citation
Mahala and Sarolia, 2012
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