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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 6
First page : (358) Last page : (368)
Article doi: :

Study of Heterosis for Grain Yield and Its Components in Aerobic Rice (Oryza Sativa L.)

Anjalkumar Patel*, Kalpana Rathava, P. D. Gajjar, C. G. Intwala and Pathik Patel

Department of Genetics and Plant Breeding, N. M. College of Agriculture,
Navsari Agricultural University, Navsari - 396 450 (Gujarat)
*Corresponding Author E-mail:
Received: 8.10.2018  |  Revised: 15.11.2018   |  Accepted: 24.11.2018  



Line × tester analysis using a set of 4 females (lines) and 12 males (testers) having diverse genetic background was carried out to study the nature and magnitude of heterosis for yield and its components of rice under aerobic condition. Experimental material comprising 16 parents and their 48 hybrids were planted in a Randomized Block Design with three replications during Kharif- 2015 at the Main Rice Research Centre, Navsari Agricultural University, Navsari. Considerable magnitude of relative heterosis and heterobeltiosis was observed for all characters. Crosses NAUR-1 × CR DHAN 201, Gurjari × GR-7 and GNR-3 × IET 23449 were found to be most heterotic hybrids for grain yield per plant and also exhibited increase in number of productive tillers per plant, number of grains per panicle, panicle weight and 1000 grain weight had positive effects towards higher grain yield.

Key words: Rice, Aerobic condition, Line × Testers, Relative heterosis, Heterobeltiosis

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Cite this article: Patel, A., Rathava, K., Gajjar, P. D., Intwala, C. G. and Patel, P., Study of Heterosis for Grain Yield and Its Components in Aerobic Rice (Oryza sativa L.), Int. J. Pure App. Biosci.6(6): 358-368 (2018). doi: