The Asian Journal of Horticulture

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Studies on Genetic Variability and Correlation for Fruit Yield and Fruit Quantity Characters of Okra


Affiliations
1 Department of Plant Breeding and Genetics, PGP College of Agricultural Sciences, Namakkal (T.N.), India
2 Department of Genetics and Plant Breeding, Annamalai University, Annamalai Nagar (T.N.), India
     

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Okra (Abelmoschus esculentus) is a most common vegetable crop cultivated for its tender, nutritive fruits. It is well adopted suitable for cultivation all round the year for providing continuous income to the farmer. An experiment was conducted to study the genetic variability and correlation in okra, involving 40 genotypes for eight important economic characters, namely days to first flowering, plant height, number of branches per plant, number of fruiting nodes, fruit length, fruit girth, fruit weight, fruit yield per plant. High PCV and GCV observed for the traits fruit girth, fruit weight, fruit yield per plant. Majority of the traits recorded high heritability. For fruit weight and fruit yield per plant, high heritability coupled with high genetic advance as per cent of mean were observed. The results indicated the inverse relationship between fruit weight and fruit yield per plant. Fruit yield per plant was positively and significantly correlated with fruit girth, fruit length, number of fruiting nodes, number of branches per plant and plant height, whereas, fruit yield per plant had negative and significant correlation with days to first flowering.

Keywords

Okra, Genetic Variability, Heritability, Genetic Advance, Correlation.
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  • Al-Jibouri, H.A., Miller, P.A. and Robinson, H.F. (1958). Genotypic and environmental variances and covariance in an upland cotton cross of interspecific origin. Agron. J., 50: 632-636.

  • Anbanandan, V., Saravanan, K. and Sabesan, T. (2009). Variability, heritability and genetic advancein rice (Oryza sativa L.). Internat. J. Plant Sci., 3(2): 61-63.

  • Babu, S., Yogameenakshi, P., Sheeba, A., Anbumalarmathi, J. and Rangasamy, R. (2006). Path analysis in hybrid rice (Oryza sativa L.) over salt environments. Oryza, 43(3): 238-240.

  • Burton, G.W. and De Vane, E.H. (1953). Estimating heritability in tall fescue (Festuca arundinaceae) from replicated clonal material. Agron. J., 45 : 578-581.

  • Fisher, R.A. (1981). The correlation among relative on the supposition of Mendelian inheritance. Trans. Royal Soc. Edinburgh, 52 : 314-318.

  • Johnson, H.W., Robinson, H.E. and Comstock, R.E. (1955). Estimate of genetic and environmental variability in soybean. Agron J., 47: 314-318.

  • Krishnaveni, B., Shobharani, N. and Ramprasad, A.S. (2006). Genetic parameters for quality characteristics in aromatic rice. Oryza, 43(3): 234-237.

  • Panse V.G. and Sukhatme P.V. (1985). Statistical methods for agricultural workers. 4th Edn. ICAR, New Delhi, INDIA.

  • Sabesan, T., Suresh, R. and Saravanan, K., (2009). Genetic variability and correlation for yield and fruit quantity in okra. Electron. J. Plant Breed., 1 : 56-59.

  • Saravanan, K. and Sabesan, T. ( 2009). Association analysis and path analysis for yield and its contributing traits in rice (Oryza sativa L.). Internat. J. Plant Sci., 3(2) : 27-29.

  • Sarkar, K.K., Bhutia, K.S., Senapathi, B.K. and Roy, S.K., (2007). Genetic variability and characters association of quality traits in rice (Oryza sativa L.). Oryza, 44(1): 64-67.

  • Wright, S. (1935). The analysis of variable and correlations between relative with respect to deviations from an optimum. J. Genetics, 30: 243-256.

  • Yugandhar Reddy, M., Subash Chandra,Yadav, Suresh Reddy, B., Lavanya, G.R. and Suresh, G. (2008). Character association and component analysis in rice. Oryza, 45(3) : 239-241.


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  • Studies on Genetic Variability and Correlation for Fruit Yield and Fruit Quantity Characters of Okra

Abstract Views: 226  |  PDF Views: 0

Authors

R. Pachiyappan
Department of Plant Breeding and Genetics, PGP College of Agricultural Sciences, Namakkal (T.N.), India
K. Saravannan
Department of Genetics and Plant Breeding, Annamalai University, Annamalai Nagar (T.N.), India

Abstract


Okra (Abelmoschus esculentus) is a most common vegetable crop cultivated for its tender, nutritive fruits. It is well adopted suitable for cultivation all round the year for providing continuous income to the farmer. An experiment was conducted to study the genetic variability and correlation in okra, involving 40 genotypes for eight important economic characters, namely days to first flowering, plant height, number of branches per plant, number of fruiting nodes, fruit length, fruit girth, fruit weight, fruit yield per plant. High PCV and GCV observed for the traits fruit girth, fruit weight, fruit yield per plant. Majority of the traits recorded high heritability. For fruit weight and fruit yield per plant, high heritability coupled with high genetic advance as per cent of mean were observed. The results indicated the inverse relationship between fruit weight and fruit yield per plant. Fruit yield per plant was positively and significantly correlated with fruit girth, fruit length, number of fruiting nodes, number of branches per plant and plant height, whereas, fruit yield per plant had negative and significant correlation with days to first flowering.

Keywords


Okra, Genetic Variability, Heritability, Genetic Advance, Correlation.

References