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Thirty genotypes of Cluster bean were evaluated to ascertain genetic parameters of variability,
heritability, path analysis and genetic advance in Cluster bean was studied during Rabi season of
2012-2013 & 2013-2014 at the Horticulture Research Farm of the Department of Applied Plant
Science (Horticulture), Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, India.
30 genotypes of Cluster bean showed wider variation for all traits result revealed that highest range
of variation. The research findings depicted highest range of variation for pod yield (q/ha) followed
by pod yield/plant (g). The coefficient of variation was minimum for number of branches/plant at
maturity followed by days to maturity whereas, under pooled data analysis, it was found minimum
for days to maturity followed by pod yield/plant (g). In all the three studies, coefficient variation was
maximum for pod width (cm) followed by pod breath (cm). In the first year, heritability estimates
were high for all the characters except pod width (cm), pod breath (cm) and days taken for first
flowering, whereas in the second year pod breath (cm), days taken for 50 % flowering, pod width
(cm), pod length (cm) and number of pods/plant attain lower heritability values. Under pooled data
analysis, pod width (cm), days taken for first flowering, pod breath (cm), germination (%) and days
taken for 50 % flowering were found with lower heritability estimates. High heritability with high
genetic advance were found with number of clusters/plant, number of pods/plant, pod yield/plant (g),
plant height (cm), days to maturity, pod yield/plant (g), number of pods/plant, number of
clusters/plant and pod yield (q/ha), indicating there by that selections based on phenotypic
performance could be effective for improvement of these characters.
Keywords: Genetic variability, correlation, genetic advance, path analysis, traits, cluster bean, Cyamopsis tetragonoloba, yield and yield attributes.