Abstract:
The present study was laid on randomized complete block design on the
experimental plot of Sher-e-Bangla Agricultural University, Dhaka- 1207 with
three replications. Ten sweet gourd genotypes were used to estimate the genetic
variability, correlation and path coefficient analysis of yield and yield
contributing character in sweet gourd. Analysis of variance expressed that
genotypic mean sum of square was found highly significant for all the studied
characters. PCV for all the observed characters were found greater than the GCV.
The highest value of PCV and GCV were 44.25% and 34.07%, respectively for
yield per plant. High heritability along with high genetic advance were found for
days to first male flowering, days to first female flowering, pedicle length of
male flower, pedicle length of female flower, number of male flowers, and
individual fruit weight. Through the correlation coefficient analysis, it was
observed that, fruit yield per plant had positive and significant correlation with
days to first male flowering, days to first female flowering, number of male
flowers, number of female flowers, fruit length, number of fruits per plant and
individual fruit weight. Path analysis exhibited that, positive and direct effect on
yield per plant was recorded for days to first male flowering, number of male
flowers, number of female flowers, leaf length, fruit length, number of fruits per
plant, and individual fruit weight. From this observation, it was found that
genotype G8 and genotype G4 were early in nature and genotype G6 was found
to give best performance in number of male flowers, number of female flowers,
number of fruits per plant, individual fruit weight, fruit yield per plant. So, that,
these genotypes of sweet gourd could be used for future breeding programs.
