Combining ability analysis in near homozygous lines of okra [Abelmoschus esculentus (L.) Moench] for yield and yield attributing parameters
Article Main
Abstract
Line × tester analysis was carried out with the objective of identifying the good combiners and to decide the breeding strategies for developing potential and productive genotypes or cultivars. Parents and hybrids differed significantly for GCA and SCA effects for all the characters respectively. Specific combining ability (SCA) variance was higher than the general combining ability (GCA) variance which shows the predominance of non-additive gene action for the improvement of all the characters studied. The parents and crosses having highest and significant GCA and SCA effects viz., KO-18 (13.69), KO-6 (9.54) and KO-2 × Parbhani Kranti (19.28) for plant height; KO-12 (0.34), KO-14 (0.19) and KO-5 × V5 (0.60) for number of branches per plant; KO-14 (-0.66) and KO-15 × Arka Anamika(-1.66) for days to first flowering; KO-1(1.10), Arka Anamika (0.46) and KO-9 × VRO-5 (3.28) for fruit length; KO-7 (7.91), VRO-5(1.68) and KO-18 × VRO-6 (8.64) for average fruit weight; KO-2 (1.18) and KO-17 × Arka Anamika (2.80) for number of fruits per plant; KO-9(0.05), VRO-6 (0.01) and KO-11 × VRO-6 (0.10) for total yield per plant were identified as good general and specific combiners. The results establish the worth of heterosis breeding for effective usage of non-additive genetic variance in okra.
Article Details
Article Details
Combining ability, Okra, Line × tester, Variance
Dhankar, S.K., Dhankar, B.S. and Tewatia, A.S. (1998). A note on heterosis and combining ability in okra (Abelmoschus esculentus (L.) Moench). Haryana J. Hort. Sci., 27(3): 211-214
Eswaran, R., Thirugnanakumar, S., Sampathkumar, C.P., Anandan, A. and Padmanaban, C. (2007). Studies on the genetic causes of heterosis in okra [Abelmoschus esculentus (L.) Moench]. Plant Archives, 7(2): 721-724
Griffing, B. (1956). Concept of general combining ability in relation to diallel crossing system. Australian J. of Biological Sci., 9: 463-493
Kempthorne, O. (1957). An introduction to genetic statistics. John Wiley and Sons, New York, pp. 408-711
Kumar, P., Dixit, J. and Singh, B.P. (2006). Heterosis studies in okra. Haryana J. Hort. Sci., 35(1&2): 120-123
Kumar, S. and Reddy, M.T. (2016). Combining Ability of Inbred Lines and Half-Diallel Crosses for Economic Traits in Okra (Abelmoschus esculentus (L.) Moench). Jordan J. of Agricultural Sci., 12(2):479-497
Manivannan, M.I., Rajangam, J. and Aruna, P. (2007). Heterosis for yield and yield governing traits in okra. The Asian J. Hort., 2(2): 96-103
Sheela, M.N., Manikantan, N.P. and Gopinathan, N.V., 1998, Heterosis in bhendi. Agric. Res. J. of Kerala, 26(1): 23-28
Singh, D.R. and Syamal, M.M. (2006). Heterosis in okra [Abelmoschus esculentus (L.) Moench]. Orissa J. Hort., 34(2): 124-127.
Singh, D.R., Singh, P.K., Syamal, M.M. and Gautam, S.S. (2009). Studies on combining ability in okra. Indian J. Hort., 66(2): 277-280.
Singh, B. and Goswami, A. (2015). Combining ability analysis in okra (Abelmoschus esculentus). Indian J. of Agricultural Sci., 85 (9): 1237–44
Solankey, S.S. and Singh, A.K. (2010). Studies on combining ability in okra [Abelmoschus esculentus (L.) Moench]. The Asian J. Hort., 5(1): 49-53
Srivastava, M.K., Kumar, S. and Pal, A.K. (2008). Studies on combining ability in okra through diallel analysis. Indian J. Hort., 65(1): 48-51
Reddy, M. T., Haribabu, K., Ganesh, M. and Begum, H. (2011). Combining ability analysis for growth, earliness and yield attributes in okra (Abelmoschus esculentus (L.) Moench). Thai J. Agric. Sci., 44(3):207-218
Vijay, O.P. and Manohar, M.S. (1986). Combining ability in okra. Indian J. Hort., 43: 133-139
Wammanda, D.T., Kadams, A.M. and Jonah, P. M. (2010). Combining ability analysis and heterosis in a diallel cross of okra (Abelmoschus esculentus (L.) Moench). Afr. J. Hortic., 5(16):2108-2115
Weerasekara, D. (2006). Genetic analysis of yield and quality parameters in okra (Abelmoschus esculentus (L.) Moench.). M.Sc. Thesis, Univ. Agric. Sci., Dharwad.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)
