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K. RADHA RANI*, P. LALITHA KAMESHWARI AND M. NARAYANAMMA
College of Horticulture, Rajendranagar, Hyderabad, Telangana – 500 030.
A study was conducted to evaluate fourteen genotypes of okra for yield and various yield attributing traits at Vegetable Breeding Station, Agricultural Research Institute, Rajendranagar, Hyderabad during kharif 2006 and 2007. The data were utilized to estimate the genetic variability in terms of mean, genotypic and phenotypic coefficients of variation, heritability, expected genetic advance and expected genetic advance as per cent mean. The present investigation showed that phenotypic coefficient of variation was higher than genotypic coefficient of variation for all traits suggesting the influence of environment in their expression. The estimates of GCV, heritability and heritability coupled with genetic advance as per cent of mean were higher for number of fruits plant-1, internode length and plant height. The correlation study indicated that the yield plant-1 had high positive association with number of fruits plant-1, plant height, internode length and fruit girth at both genotypic and phenotypic levels. Among the traits studied, number of fruits plant-1 had maximum direct contribution on yield and indirect contribution via plant height, internode length and fruit girth.
Correlation, genetic variability, heritability, okra, path analysis