Character Association and Stability Analysis in Cowpea [Vignaunguiculata (L.) Walp]
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Date
2017
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MPUAT, Udaipur
Abstract
The present investigation entitled “Character Association and Stability
Analysis in Cowpea” was conducted during Kharif2015 and Kharif 2016 at
Rajasthan College of Agriculture, Udaipur (Rajasthan). The experimental material
comprised 30 genotypes including three checks RCV-7, RC-19 and RC-101. All
genotypes were evaluated in randomized block design with three replications in three
different environments i.e. Kharif 2015(E1),Kharif 2016 (E2) and (E3)sowing.
Observations were recorded for twelve yield attributing characters and one
quality traits. Correlation and path analysis were computed for each environment and
on pooled basis. Stability parameters were analysed using the model (Eberhart and
Russell, 1966).
Mean performance revealed the Environment-2 was most suitable for many
characters to give better performance followed by E1 and E3. Highest seed protein
content was observed in E2 followed by E1, on pooled basis and E3. In E1, E3, and on
pooled basis genotype CPD-197 and in E2 genotype GC-3 was graded as high
yielding genotypes whereas poor yielding genotypes were CPD-115(E1, E2 and on
pooled basis) and CPD-127(E3). Genotype CPD-197 gave high consistent expression
for yield character in all environments.
Correlation studies revealed that seed yield per plant was positively correlated
at both genotypically and phenotypically with biological yield, 100-grain weight, and
harvest index in all environments and on pooled basis, whereas, number of pods per
plant and number of clusters per plant in atleast two environments ( E1& E2) as well
as on pooled basis. However, seed protein content exhibited non-significant and
negative correlation at both genotypic and phenotypic level in E1, E2, E3 and pooled
basis.
Description
Character Association and Stability Analysis in Cowpea [Vignaunguiculata (L.) Walp]
Keywords
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Citation
Baranda and Sharma, 2017