GENETIC VARIABILITY, HERITABILITY AND GENETIC ADVANCE STUDIES IN OKRA (Abelmoschus esculentus L. Moench)

AWADHESH KUMAR¹, SANJAY KUMAR²*, SUTANU MAJI^3
1Department of Applied Plant Science (Horticulture), Babasaheb Bhimrao Ambedkar University, Vidya-Vihar, Rae Bareli Road, Lucknow, 226025, India
²Department of Applied Plant Science (Horticulture), Babasaheb Bhimrao Ambedkar University, Vidya-Vihar, Rae Bareli Road, Lucknow, 226025, India
³Department of Applied Plant Science (Horticulture), Babasaheb Bhimrao Ambedkar University, Vidya-Vihar, Rae Bareli Road, Lucknow, 226025, India
* Corresponding Author : sanjay123_bhu@yahoo.co.in

Received : 13-08-2016     Accepted : 09-11-2016     Published : 24-11-2016
Volume : 8     Issue : 57       Pages : 3122 - 3124
Int J Agr Sci 8.57 (2016):3122-3124

Keywords : Genetic variability, Heritability, Genetic advance, Okra & fruit yield
Conflict of Interest : None declared
Acknowledgements/Funding : Authors acknowledged Head, Department of Applied Plant Science (Horticulture) Babasaheb Bhimrao Ambedkar University, Lucknow for providing facility for the research work and Director, IARI, New Delhi for providing seed materials.
Author Contribution : None declared

The present experiment was conducted at Horticulture Research Farm of the Department of Applied Plant Science (Horticulture), Babasaheb Bhimrao Ambedkar University, Lucknow (UP) to study the variability, heritability, expected genetic advance, inter characters association and direct and indirect effect of components on fruit yield per plant. The result of experiment showed that the analysis of variance of the designed experiment indicates that the mean square due to genotypes were highly significant for all the characters. The genotypes Parbhani Kranti recorded highest yield per plant followed by VRO-6, VRO-5 and Punjab-7. High magnitude of genotypic and phenotypic coefficient of variation was recorded for fruit yield per plant, number of fruits per branch, number of leaves per plant while, fruit diameter showed lowest genotypic and phenotypic coefficient of variation. The highest heritability (%) was noted in number of flower per plant followed by fruit yield per plant, number of leaves per plant, number of fruits per plant, fruit weight, number of fruit per branch and plant height where as the lowest heritability was observed in number of branches per plant, stem diameter and number of days taken to flower. The highest genetic advance was observed for number of fruits per plant followed by number of leaves per plant, number of flower per plant, plant height and number of days taken to flower while, lower genetic advance were recorded for fruit length, number of fruits per branch, fruit diameter, number of branches per plant and fruit yield per plant. Path coefficient analysis carried out of phenotypic level. Positive and direct effect on fruit yield per plant exerted by number of fruits per plant followed by stem diameter, fruit weight, number of days taken to flower, number of leaves per plant, number of fruits per branch and number of branch per plant. However, negative and indirect effect on fruit yield was observed