ISSN : 2320-7051

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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 4
First page : (712) Last page : (724)
Article doi: :

Combining Ability and Gall Midge Resistance for Yield and Quality Traits in Hybrid Rice (Oryza sativa L.)

Sameena Begum*, V. Ram Reddy, B.Srinivas and Ch. Aruna Kumari

Agricultural College, Jagtial
Professor Jayashankar Telangana State Agricultural University, Hyderabad
*Corresponding Author E-mail:
Received: 25.05.2018  |  Revised: 29.06.2018   |  Accepted: 8.07.2018  



This study was conducted to estimate combining ability and gall midge resistance for yield and quality traits in hybrid rice. Six cytoplasmic male sterile lines were crossed to seven testers in Line X Tester mating design to produce 42 hybrids. The parents and hybrids along with four checks were evaluated at a Regional Agricultural Research Station, Polasa, Jagtial of Telangana state considered to be a gall midge hot spot. Line x Tester analysis was performed to estimate combining ability for yield and gall midge resistance as well as other traits among parental lines and the hybrids. The analysis of variance for combining ability shows that mean sum of square due to lines, testers and the interaction between lines and testers was significant for most of the characters under study. Non additive gene action was predominant for all the traits and resistance to gall midge. Based on GCA and SCA effects, some lines and hybrids have been identified with good yield potential and resistance to gall midge.

Key words: Rice, Gall midge, Combining ability, Resistance, Yield.

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Cite this article: Begum, S., Reddy, V.R., Srinivas, B. and Kumari, Ch.A., Combining Ability and Gall Midge Resistance for Yield and Quality Traits in Hybrid Rice (Oryza sativa L.), Int. J. Pure App. Biosci.6(4): 712-724 (2018). doi: