Advanced generation selection for yield and yield components in Bhendi [Abelmoschus Esculentus (L.) Moench]
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Date
2008
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UAS, Dharwad
Abstract
An investigation was carried out to elicit information on genetic variability, character
association, path coefficient analysis, inter generation correlation and regression analysis for
fruit yield per plant and its component traits in three single cross and four double cross F4 and
F5 progenies of bhendi at ARS, Hanumanamatti during summer and kharif 2008. Experiment
was laid out in randomized block design with three replications. Observations were collected
for twelve quantitative traits. High PCV and GCV values were found for number of branches
per plant, number of fruits per plant and fruit yield per plant. Moderate GCV and PCV values
were recorded for internodal length, fruit length, fruit diameter and fruit weight in both single
and double cross F4 and F5 progenies indicate existence of wide range of genetic variability in
the material evaluated. High heritability coupled with high genetic advance was observed for
number of branches per plant, number of fruits per plant and fruit yield per plant in both
single and double cross F4 and F5 progenies indicating additive gene action in the control of
expression these characters. Narrow sense heritability was high for internodal length, number
of seeds per fruit and 100-seed weight in both single and double cross F4 and F5 progenies.
Correlation studies revealed highly significant positive association of fruit yield per
plant with plant height, number of branches per plant, fruit weight, fruit length, number of
seeds per fruit and number of fruits per plant. Path analysis revealed high positive direct
effect of number of fruits per plant, fruit weight and number of branches per plant on fruit
yield per plant.
Analysis of productive segregants for important component traits revealed that more
number of segregants were released in double cross population BH-16 followed by single
cross population BH-13. These segregants were superior to commercial checks
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Genetics and Plant Breeding