volume 40 issue 4 (december 2006) : 302 - 305
GENETIC VARIABILITY, CHARACTER ASSOCIATION AND COMPONENT ANALYSIS IN UPLAND COTTON
1Agricultural Research Station,
Gujarat Agricultural University, Amreli - 364 601, India
Published In
Indian Journal of Agricultural Research
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volume 40 issue 4 (december 2006) : 302 - 305
GENETIC VARIABILITY, CHARACTER ASSOCIATION AND COMPONENT ANALYSIS IN UPLAND COTTON
1Agricultural Research Station,
Gujarat Agricultural University, Amreli - 364 601, India
ABSTRACT
To assess the extent of variability, heritability and genetic advance per cent in 36 hybrids
revealed that the GCV, heritability in broad sense and genetic advance as per cent of mean values
were comparatively high for lint yield, seed cotton yield, number of sympodia per plant and plant
height indicating the operation of additive gene action for these four traits. The correlation analysis
indictated that lint yield and plant height had positive and significant correlation with seed cotton
yield, while days to first flowering and days to 50% boll opening had negative and significant
association with seed cotton yield. Path coefficient analysis revealed that among all the characters
studied, lint yield should receive greater emphasis in cotton improvement programmes as it contributes maximum direct effect and higher indirect effect through other characters.
revealed that the GCV, heritability in broad sense and genetic advance as per cent of mean values
were comparatively high for lint yield, seed cotton yield, number of sympodia per plant and plant
height indicating the operation of additive gene action for these four traits. The correlation analysis
indictated that lint yield and plant height had positive and significant correlation with seed cotton
yield, while days to first flowering and days to 50% boll opening had negative and significant
association with seed cotton yield. Path coefficient analysis revealed that among all the characters
studied, lint yield should receive greater emphasis in cotton improvement programmes as it contributes maximum direct effect and higher indirect effect through other characters.
KEYWORDS
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In this Article
APC
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Published In
Indian Journal of Agricultural Research