Genetic variability, heritability and genetic advance studies for yield components in Okra [Abelmoschus esculentus (L.) Moench]

Abstract

A field examination was carried out with 40 genotypes of okra to study the genetic variability, heritability and genetic advance of fourteen different characters A wide range of variation was observed for all the characters taken under study. The magnitude of phenotypic coefficient of variation was higher than corresponding genotypic coefficient of variation for all the characters studied. The high to moderate genotypic coefficient of variation and phenotypic coefficient of variation was observed for internodal length, number of nodes per plant, green fruit yield per plant, fruit length, number of fruits per plant and plant height, while high heritability (broad sense) values were observed for all the characters taken under study except 10-green fruits weight, number of branches per plant, days to 50 percent flowering, days to last picking, days to first flowering and days to first picking. The high to moderate genetic advance was recorded for green fruit yield per plant, plant height, 10-green fruits weight and internodal length. Green fruit yield per plant and plant height had high heritability and high genetic advance. Fruit width, number of nodes per plant number of fruits per plant, fruit length and number of picking, while it had low heritability coupled with low genetic advance as percent of mean.