Genotypic diversity and stability analysis in chickpea (Cicer arietinum L.)
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Date
2010
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Publisher
CCSHAU
Abstract
Fifty genotypes of chickpea were evaluated in three different environments for the nature of
variability and stability for eleven traits viz., days to 50% flowering, days to maturity, plant height ,
number of branches per plant, number of pods per plant, number of seeds per pod, biological yield,
seed yield per plant, harvest index (%), 100 seed weight and protein content ( %). Analysis of variance
revealed significant differences among the genotypes for all the characters studied. The highest GCV
and PCV were observed for number of branches per plant followed by 100 seed weight, number of pods
per plant, seed yield per plant, biological yield per plant. The highest heritability value was registered
for protein content (%), plant height, days to 50% flowering, seed yield per plant, biological yield per
plant. Genetic advance as % of mean was highest for 100 seed weight in E1 and E2 followed by seed
yield per plant for number of pods per plant in E3 followed by number of branches per plant, harvest
index and seed yield per plant. In the present study high heritability estimates accompanied with high
genetic advance were observed for 100 seed weight in all the three environments.
These genotypes were grouped into eight clusters each in first two environments (E1, E2) and
into nine clusters in environment three (E3). On overall basis genotypes HC-3, HK-3, HK06-169,
HK06-151, H05-10, H06-07, H06-32 and H07-23 were observed quite divergent in all the
environments and could be used in hybridization programme for obtaining superior recombinants.
Pooled analysis indicated wide differences between environments and differential behaviour of
genotypes in different environments. Stability analysis showed that a major portion of genotype ×
environment (G × E) interaction was accompanied by linear component for days to 50% flowering,
days to maturity, number of branches per plant, number of pods per plant, number of seeds per pod,
biological yield, seed yield per plant, 100 seed weight, whereas, non-linear portion predominantly
contributed towards plant height, number of branches per plant, harvest index and protein content (%).
Environment two (E2) was observed to be best for most of the yield attributing traits. Based on stability
parameters genotypes H06-79, H04-31, HK05-151, HK06-162, HK06-170, HK06-171, HK-2, HK-3,
H06-32 were found stable in better environmental conditions, genotype HC-3 for poor environment and
genotypes H05-10, HK06-152, HK06-155 across the environments.
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Keywords
Tribal peoples, Tillage equipment, Land resources, Crops, Biological phenomena, Area, Shifting cultivation, Livestock, Participation, Manpower