| dc.description.abstract | The present study was conducted at the field under the Department of Genetics and Plant
Breeding, Hajee Mohammad Danesh Science and Technology University, Dinajpur to
study the correlation and path coefficient analysis of 48 yard long bean varieties during the
period from November, 2011 to April, 2012. Data were recorded on days to first
flowering, pod length, pods per plant, number of pod bearing nodes per plant, number of
seeds per pod, 100 seed weight, seed yield per plant, days to first harvesting, length of
harvesting period and pod yield per plant. The results of the experiment revealed that
significant variations were present for all the characters studied. Among the yard long
bean variety, YLB-8/55 showed the highest days for days to first flowering and harvesting
time. The maximum pod length (56.43 cm) was found in YLB-SS and highest yield
(259.00g) per plant in the variety YLB-21. Phenotypic coefficient of variation (PCV) was
higher than the genotypic coefficient of variation (GCV) for all the traits. The highest
genotypic (26.70%) and phenotypic (28.16%) coefficient of variations were recorded in
seed yield per plant. Heritability estimates were higher for days to first flowering, pod
length, number of pods per plant, seed yield per plant, days to first harvesting and pod
yield per plant. High heritability coupled with high magnitude of genetic advance in
percent of mean was estimated for pod length, seed yield per plant and pod yield per plant.
Correlation coefficient indicated that yield per plant had highly significant and positive
association with days to first flowering, pod length, number of pods per plant, number of
seeds per pod and days to first harvesting. Path coefficient analysis revealed that pod
length had maximum positive direct effect on yield per plant. | en_US |
