GENETIC VARIABILITY AND ASSOCIATION ANALYSIS IN QUANTITATIVE TRAITS OF OKRA.
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Date
2020-10-01
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Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The present investigation was undertaken with the objectives to estimate the extent of genetic variability genotypic and phenotypic correlation coefficient with path analysis of yield component in selected available genotypes of okra.
The observation were recorded on plant height (cm), number of primary branches per plant, number of nodes per plant, inter nodal length (cm), days to first flowering, days to 50% flowering, days to last harvesting, number of fruits per plant, weight of fruit (g), fruit length (cm), diameter of fruit(cm), yield per plant(g), moisture content (%), YVMV severity, yield per plot (kg), yield per hectare(q).
Genotypic coefficient of variation found too high in yield per plant and noted low in days to first flowering. Similar trends was observed for phenotypic coefficient of variation indicating less influence of environment. Heritability estimates were higher for all the characters and high heritability coupled with high expected genetic advance over mean for characters number of primary branches, days to last harvesting and number of fruits per plant. The minimum differences in GCV and PCV were observed for the character fruit length, diameter of fruit.
Yield per plant was Positively and significantly correlated with are observed among various characters Number of fruits per plant, Weight of fruit, Number of nodes per plant, Number of primary branches per plant.
Based on direct and indirect effects of different yield components on yield it appears that it would be rewarding to lay stress on number of nodes per plant, Number of fruits per plant, Number of primary branches, and Fruit yield per plant will be useful in identifying the genotypes as parents for further improvement in okra.
Genotypes like Phule Vimukta, AKO-10, PDKV Pragati could selected for further crop improvement in okra.
Description
The present experiment was carried out during kharif season of 2019, at Instructional Farm, Department of Vegetable Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.). The experiment was conducted in Randomized Block Design with three replications and twenty treatment. There were twenty genotypes procured from different research station, private company and university.
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Citation
PATIL, KIRTIKUMAR RAVASAHEB. (2020). Genetic variability and association analysis in quantitative traits of okra. Department of Vegetable Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2020. Print. xv, 70p. (Unpublished).