ESTIMATES OF DIRECT AND INDIRECT EFFECTS AMONG YIELD, YIELD CONTRIBUTING AND QUALITY TRAITS IN AMERICAN COTTON (Gossypium hirsutum L.)
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Authors
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K. SURYA NAIK, Y. SATISH*, J. DAYAL PRASAD BABU and V. SRINIVASA RAO
Department of Genetics and Plant Breeding, Agricultural College, Acharya N.G. Ranga Agricultural University, Bapatla-522101
Abstract
Correlation and path coefficient analysis for yield and yield contributing characters in American cotton
with 56 genotypes for 14 traits was studied during Kharif, 2017-18. The character association analysis revealed
that plant height (cm), number of monopodia plant-1, number of sympodia plant-1, number of bolls plant-1, boll
weight (g), seed index (g), lint index (g), micronaire value (10-6g/inch) and uniformity ratio were found to have
significant positive association with seed cotton yield plant-1 at genotypic level. The path analysis indicated
that the plant height (cm), number of monopodia plant-1, number of bolls plant-1, boll weight (g), seed index (g)
and micronaire value (10-6g/inch) showed direct positive effects and significant positive correlation with seed
cotton yield plant-1 (g). It is revealed that priority should be given in selection process with more number of
bolls plant-1 and more boll weight and there should be economic balance among these characters to get
higher seed cotton yield plant-1.
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