TAILIEUCHUNG - Heterosis for grain yield and its component traits in rice

Twenty one Kerala rice varieties were crossed with four CMS lines in LxT fashion. The hybrid developed from twenty two crosses between identified restorers and 4 CMS lines were evaluated for heterosis in yield and yield contributing traits. | 2017 6 10 50-60 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 6 Number 10 2017 pp. 50-60 Journal homepage http Original Research Article https Heterosis for Grain Yield and its Component Traits in Rice R. Das1 V. G. Jayalekshmy1 S. Leenakumari2 Vijayaraghavakumar3 and Swapna Alex4 1 Department of Plant Breeding and Genetics College of Agriculture Vellayani Kerala Agricultural University Thrissur Kerala India 2 Registrar Kerala Agricultural University Thrissur Kerala India 3 Department of Agricultural Statistics 4Department of Plant Biotechnology College of Agriculture Vellayani Kerala India Corresponding author ABSTRACT Keywords Twenty one Kerala rice varieties were crossed with four CMS lines in LxT CMS L x T fashion. The hybrid developed from twenty two crosses between identified Restorers Hybrid restorers and 4 CMS lines were evaluated for heterosis in yield and yield and Heterosis. contributing traits. Identified promising hybrids were UPRI95-17A x Article Info Aiswarya UPRI95-17A x Neeraja UPRI95-17A x Remya and CRMS31A x Kanakom based on high mean grain yield per plant and high standard Accepted 04 September 2017 heterosis over standard check Uma with respect to grain yield and yield Available Online contributing traits. Identified superior hybrids can be released for 10 October 2017 commercial purpose after trail. Introduction The challenge of increasing the annual rice and widely adopted by farmers in China production of the country calls for both short during the past 25 years. During 2006 and long term planning encompassing genetic hybrids were cultivated in India in around 1 as well as crop management options. Among and the National Food Security Mission the innovative genetic options available NFSM has set a target of expanding the hybrid rice technology is practically feasible hybrid rice cultivation to 3 by 2011-12. .

• Nông nghiệp
• Heterosis for grain yield
• Grain yield
• Component traits in rice
• Grain yield in rice
• Yield contributing traits
• Architectural traits
• Yellow seeded maize
• Estimation of heterosis for grain yield
• Standard heterosis
• Pennisetum glaucum male sterile line
• Yield components in pearl millet
• Estimation of heterosis
• Yield components
• Bread wheat (Triticum aestivum L
• Bread wheat over environments
• Average heterosis
• Kharif Sorghum
• Heterotic combinations for grain yield
• Yield associated components
• Rabi sorghum
• Component traits in rabi sorghum
• Heterosis of parents
• SCA value
• Heterosis effect
• Indian mustard
• Combining ability
• Heterosis for seed yield
• Positive GCA impact
• Diallel crosses
• Protein content
• Grain yield and protein content
• Maize (Zea mays L )
• Combining ability analysis
• Line x tester
• Post rainy sorghum
• Specific combining ability analysis
• Pearl millet (Pennisetum glaucum (L ) R Br )
• Inbreeding depression
• Dry fodder yield
• Sowing conditions
• Heterosis in cowpea
• Selected traits
• Selected traits in cowpea
• Pearl millet
• Line × tester
• Pearl millet germplasm
• Combining ability studies
• Heterosis in indigenous collection
• F1 hybrids
• F2 population
• Related morphophysiological characters in wheat
• Inbreeding depression for grain yield
• BMC Plant Biology
• Immortalized F2 population
• Recombinant inbred lines
• Quantitative trait locus
• Total carotenoid
• Gene action
• Heterosis and pearl millet
• Cytoplasm in pearl millet
• Additive gene expression
• Hybrid F1 plants
• Zea mays L