Estimation of Genetic Parameters in Okra [Abelmoschus esculentus (L.) Moench] under Malwa region of Madhya Pradesh

Author: Sunil Baghel, Ajay Kumawat, Ankit Pandey, Pavan Devesh and N.K. Gupta

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Abstract

Sixteen okra genotypes were evaluated to estimate the genetic parameters of yield and its attributing traits. The genotypes were sown in randomized complete block design (RCBD) with 3 replications at the Research area, Department of Horticulture, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, College of Agriculture, Indore, Madhya Pradesh. The differences were statistically significant among the genotypes for all the traits studied. Fruit and shoot borers and yellow vein mosaic virus (BYVMV) are major challenges in okra production. In the present study, High magnitude of the phenotypic coefficient of variance (PCV) than the genotypic coefficient of variance (GCV) was observed for all the traits. None of the characters reported higher PCV and GCV while, moderate PCV and GCV were observed for the number of branches per plant, number of nodes to 1st flowering, length of internodes and number of leaves per plant, fruit yield per plant, fruit yield per plot and fruit yield per hectare. High heritability coupled with high genetic advance as a percentage of mean (GAM) was observed for fruit yield per plant, fruit yield per plot, fruit yield per hectare, number of branches per plant at 60 DAS and 90 DAS, plant height at 60 DAS, number of leaves per plant at 30 DAS, number of nodes to 1st flowering and length of internodes, suggesting that direct selection of these traits for crop improvement will be rewarding due to predominance of additive variation.

Keywords

Variability, heritability, genetic advance, PCV and GCV, yield, Okra

Conclusion

The present study clearly indicated that greater variability was present among all the traits of selected okra genotypes. The magnitude of PCV was higher than GCV for all the traits. Moderate PCV and GCV were observed for the number of branches per plant at 60 DAS and 90 DAS, the number of nodes to 1st flowering, the length of internodes, the number of leaves per plant at 30 DAS, 60 DAS, and 90 DAS, the fruit yield per plant, the fruit yield per plot, and the fruit yield per hectare. High heritability coupled with high genetic advance as a percentage of mean (GAM) was observed for fruit yield per plant, fruit yield per plot, fruit yield per hectare, number of branches per plant at 60 DAS and 90 DAS, plant height at 60 DAS, number of leaves per plant at 30 DAS, number of nodes to 1st flowering, and length of internodes. It also indicated a higher response for the selection of high-yielding genotypes, as these characters are governed by additive gene actions. Based on estimations of genetic parameters, it is clear that the traits with high PCV, GCV, heritability, and genetic advance expressed as a percent mean were regarded as the most important traits, and selection of these traits will be more effective in increasing fruit production per plant.

References

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How to cite this article

Sunil Baghel, Ajay Kumawat, Ankit Pandey, Pavan Devesh and N.K. Gupta (2022). Estimation of Genetic Parameters in Okra [Abelmoschus esculentus (L.) Moench] under Malwa region of Madhya Pradesh. Biological Forum – An International Journal, 14(4): 1024-1027.