CORRELATION AND PATH COEFFICIENT ANALYSIS BETWEEN SEED YIELD AND ITS COMPONENT CHARACTERS IN M4 AND M5 GENERATIONS OF BAMBARA GROUNDNUT (Vigna subterranea (L.) Verdc.)
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Date
2015-07-10
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
Description
An investigation on association of seed yield and its traits was
carried out at K-block, University of Agricultural Sciences, Bengaluru,
during Kharif and Rabi (2012) with the objectives to assess genetic
variability, correlation and path coefficient analysis between seed yield
and its component characters and to estimate intergeneration correlation
among yield and its components in M4 and M5 generations. Variability
studies revealed an overall increase in mean for all characters, except
days to 50 per cent flowering in M4 and plant height, 100 seed weight
and shelling percentage in M5 generation. A wider range and increased
variability was observed for all characters in the mutant families
compared to control except 50 per cent flowering in both generations.
High heritability coupled with high genetic advance as per cent of mean
was observed for characters, plant height (71,37.15), plant spread
(61,26.96) and 100 seed weight (79,24.08) in M4 and 100 seed weight
(91,32.90) in M5 generation. A higher Correlation was recorded for
characters, number of pods plant-1 (0.863) and pod yield plant-1 (0.967)
in M4 and Plant height, plant spread, number of pods plant-1 (0.923) and
pod yield plant-1 (0.934) in M5 generation showed high significant
correlation with seed yield. A higher positive direct effect was observed
for all characters, except number of branches plant-1 in M4 and number
of branches plant-1, days to 50 per cent flowering in M5 generation. Pod
yield had highest indirect effect on seed yield. Significant association was
not recorded for any of characters from intergeneration correlation.
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