Assessment of genetic variability and character association in okra genotypes for yield and contributing characters
Article Main
Abstract
A study of genetic diversity in 20 okra genotypes for 22 morphological and agronomic traits (13 quantita- tive and 9 qualitative) was laid out in randomized block design with three replications during 2015-16. The phenotyp- ic and genotypic variances, phenotypic (PCV) and genotypic coefficients of variation (GCV), heritability, genetic ad- vance of the characters were studied. The genotypes demonstrated wide range of variability for all characters. In this study PCV was higher than its corresponding GCV thus revealing the role of environmental factors. High heritability (h2b) was recorded for all characters except for days to first flowering (27.76%) and days to 50% flowering (34.67%) which have moderate values. Genetic advance in per cent of mean was high for all the characters ex- cept moderate for first flowering node (12.88%), fruit length (17.59%), fruit diameter (13.99%) as well as low for days to first flowering (1.69%) and days to 50% flowering (2.28%). The higher value of genetic advance indicates that selection of genotypes on the basis of these characters is desirable. Fruit yield showed positive and highly significant (at 1% level of significance) genotypic association with fruit diameter, number of fruits per plant, average fruit weight and number of seeds per pod. The genotypes, viz. Kashi Kranti, Kashi Satdhari, VROB-159, Punjab-8 and Kashi Mohini were found promising for most of the yield contributing traits. These genotypes could be used further in hybrid breeding programme.
Article Details
Article Details
Character association, Genotypes, Heritability, Okra, Variability, Yield
Al-jibouri, H. A., Miller, R. A. and Robinson, H. F. (1956). Genotypic and environmental variance in an upland cotton cross of interspecific origin. Agron. J., 50:633-637
Anonymous (2015). Indian Horticulture Database. National Horticulture Board, Ministry of Agriculture, Government of India, Gurgaon, U.P., India
Ariyo, O.J. (1990). Variation and heritability of fifteen characters in okra (Abelmoschus esculentus (L.) Moench) Trop. Agric., 67(3) : 213-216
Ariyo, O.J. (1993). Genetic diversity in West African okra (Abelmoschu scaillei) (A. chev.) Stevels – Multivariate analysis of morphological and agronomic characteristics. Genetics Res. and Crop Evol., 40 : 25-32
Bagwale, S.B., Jawale, L.N., Deosarkar, D.B. and Jadhav, R.A. (2016). Genetic variability studies for yield, yield contributing and quality traits in okra [Abelmoschus esculentus (L.) Moench.]. Indian J. Agric. Res., 50(6) : 614-618
Balai, T.C., Maurya, I. B., Verma, S., and Kumar N. (2014). Correlation and path analysis in genotypes of okra [Abelmoschus esculentus (L.) Moench]. The Bioscan., 9(2) : 799-802
Binalfew, T. and Alemu, Y. (2016). Characterization of okra (Abelmoschus esculentus L. Moench) germplasms collected from Western Ethiopia. Intel. J. Res. in Agri. and For., 3(2) : 11-17
Burton, G.W. (1952). Quantitative inheritance in grasses. Pro.6th.Int.Grassland cong., 1 : 277-283
Burton, G.W. and Devane, E.W. (1953). Estimating heritability in all fescue (Fescutaca arundinancea) from replicated clonal materials. Agron. J., 45 : 478-481
Comstock, R.E. and Robinson, H.R. (1948). The component of genetic variance in population of biaparental progenies and their use in estimating the average of dominance. Biometr., 4:254-266
Dhall, R.K., Arora, S.K. and Rani, M. (2003). Studies on variability, heritability and genetic advance of advancedgeneration in okra [Abelmoschus esculentus (L.) Moench]. J. Res. Punjab Agric. Univ., 40:54-58
Fageria, M. S., Choudhary, B. R. and Dhaka, R. S. 2003. Vegetable Crops: Production Technology. Kalyani Publishers, New Delhi
Indurani, C. and Veeraragavanthatham, D. (2005). Genetic variability, heritability and genetic advance in okra (Abelmoschus esculentus L. Moench.). Indian J. Hort., 62:303-305
Jaiprakashnarayan, R.P., Mulge, R., Kotikal, Y.K., Patil, M.P., Madalageri, M.B. and Patil, B.R. (2006). Studies ongenetic variability for growth and earliness characters in okra [Abelmoschus esculentus (L.) Moench.]. Crop Res., 32:411-413
Johnson, H.W., Rabinson, H.F. and Comstock, R.E. (1955). Estimate of genetic and environmental variability in soybean. Agron. J., 47 : 314-318
Karri, S.R. and Acharyya, P. (2012). Performance of okra [Abelmoschus esculentus (L.) Moench] cultivars under summer and rainy environments. Intel. J. Adv. Life Sci., 2 : 17-26
Khajuria, R.K., Sharma, J.P., Samnotra, R.K., Kumar, S. and Kaki,R. (2016).Variability studies in okra (Abelmoschus esculentus L. Moench). Green Farm., 7(2) : 266-271
Khodadabi, M., Fotokian, M.H. and Miransari, M. (2011). Genetic diversity of wheat genotypes based on cluster and principal component analyses for breeding strategies. Austr. J. Crop Sci., 5(1) : 17-24
Koundinya, A.V.V., Dhankhar, S.K. and Yadav, A.C. (2013). Genetic variability and divergence in okra (Abelmoschus esculentus). Indian J. Agric. Sci., 83 : 685-688
Kumar, A., Verma, R.B., Solankey, S.S. and Adarsh, A. (2015). Appraisal of okra (Abelmoschus esculentus L. Moench) genotypes for yield and yellow vein mosaic virus incidence. Indian Phytopath., 68(2):201-206
Mehta, D.R., Dhaduk, L.K., and Patel, K.D. (2006). Genetic variability, correlation and path co-efficient analysis studiesin okra [Abelmoschus esculentus (L.) Moench.]. Agric. Sci. Digest., 26 : 15-18
Saifullah, M. and Rabbani, M.G. (2009). Evaluation and characterization of okra (Abelmoschus esculentus L. Moench.) genotypes. SAARC J. Agri., 7(1) : 92-99
Singh, B., Pal, A.K. and Singh, S. (2006). Genetic variability and correlation analysis in okra [Abelmoschus esculentusL. Moench.]. Indian J. Horti. 63(3) : 281-285
Singh, H.B. and Bhatnagar, A. (1975). Chromosome number in an okra from Ghana. Indian J. Genet. Pl. Br., 36:26-27
Solankey, S.S., Akhtar, S., Kumar, R., Verma, R.B. and Sahajanand, K. (2014). Seasonal response of okra (Abelmoschus esculentus L. Moench) genotypes for okra yellow vein mosaic virus incidence. Afr. J. Biotech., 13 : 1336-1342
Solankey, S.S., Singh, A. K. and Singh, R. K. (2013). Genetic expression of heterosis for yield and quality traits during different growing seasons in okra (Abelmoschus esculentus). Indian J. Agril., Sci.83 (8): 17-21
Thompson, C.H. and Kelley, C.W. (1957). Vegetable crops. McGraw Hill Book Co., Inc., USA
Vavilov, N.I. (1951). Origin variation immunity and breeding of cultivated plants chronica botanica, an international collection of studies in the method and history of biological and agriculture. Edited by Fransver Doorn. 13 No.11/6
Yadav, M., Chourasia, P.C., Singh, D.B. and Singh, G.K. (2010). Genetic variability, correlation coefficient and path analysis in okra. Indian J. Hort., 67 : 456-460
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)
