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Kumar, Sujeet
- Study of Heritability and Gene Action Using CMS Line in Hybrid Rice (Oryza sativa L.)
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Authors
Affiliations
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
Source
Asian Journal of Bio Science, Vol 12, No 2 (2017), Pagination: 122-125Abstract
The low heritability (h2ns ) estimate was observed with grain yield plant-1 and test weight indicating a preponderance of non-additive gene action to govern these traits. Combining ability revealed higher specific combining ability variance than their respective general combining ability variances indicating the predominance of non-additive gene effects indicated the relevance of heterosis breeding for improving the yield and yield contributing attributes.Keywords
Heterosis, Combining Ability, Line X Tester, Rice Hybrids.
References
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- Singh, R.V., Maurya, D.M., Dwivedi, J.L. and Verma, O.P. (2005). Combining ability studies on yield and its components using CMS lines in rice (Oryza sativa L.).Oryza, 42(4): 306-309.
- Variability, Heritability and Genetic Advance in Rice (Oryza sativa L.)
Abstract Views :186 |
PDF Views:1
Authors
Affiliations
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
Source
Asian Journal of Bio Science, Vol 12, No 2 (2017), Pagination: 244-247Abstract
Genetic parameters for yield and its correspondent characters in rice were estimated from a trial with two CMS, twenty testers and forty hybridscross evaluated for ten characters related to yield. The highest GCV was recorded for grain yield plant-1. High heritability and the low genetic advance were recorded for grain yield plant-1, spikelet fertility, plant height, harvest index, seedling height, flag leaf area, panicle bearing tillers plant-1, test weight and panicle length suggesting apredominance of non-additive gene action in the inheritance of these traits.Keywords
Rice, Genetic Variability, Heritability, Genetic Advance.References
- Allam, C. R., Jaiswal, H.K., Qamar, A., Venkateshwarlu, Challa and Reddy, Y.S. (2015).Variability, heritability and genetic advance studies in some indigenous genotypes of basmati rice (Oryza sativa L.). Electronic J. Plant Breed., 6 : 506-511.
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- Lingaiah, N. (2015).Genetic variability, heritability and genetic advance in rice (Oryza sativa L.). Asian J. Environ. Sci., 10: 110-112.
- Mahmood, T., Shabbir, G., Sarfraz, M., Sadiq, M., Bhatti, M.K., Mehdi, S.M., Jamil, M. and Hassan, G. (2002). Combining ability studies in rice (Oryza sativa L.) under salinized soil conditions. Asian J. Plant Sci., 1(2) : 88-90.
- Munhat, M.K., Sarawgi, A.K. and Rastogi, N.K. (2000).Gene action and combining ability for yield, grain quality and other related characters in rice.Oryza, 37(1): 1-6.
- Rai, S.K., Suresh, B.G., Rai, P.K., Lavanya, G.R., Ravi Kumar, Snadhya (2014). Genetic variability, correlation and path co-efficient studies for grain yield and other yield attributing traits in rice (Oryza sativa L.), Internat. J. Life Sci. Res.,2: 229-234.
- Rajput, A.S., Babu, G.S. and Bhatti, M. (2014).Genetic diversity of irrigated medium duration of rice genotypes suited for eastern plain zone of U.P. IOSR J. Agric. & Veterinary Sci.,7: 42-45.
- Robinson, H.F., Comstock, R.E. and Harvey, P.H.(1949). Genotypic and phenotypic correlation in corn, their importance in selection. Agron. J.,43: 282-287.
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- Study of Combining Ability Using CMS Line in Hybrid Rice (Oryza sativa L.)
Abstract Views :295 |
PDF Views:28
Authors
Affiliations
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), IN
Source
Asian Journal of Bio Science, Vol 13, No 1 (2018), Pagination: 1-9Abstract
Combining ability revealed higher specific combining ability variance than their respective general combining ability variances indicating the predominance of non-additive gene effects indicated relevance of heterosis breeding for improving the yield and yield contributing attributes. Among the testers high GCA was recorded in Sarjoo 52 and Narendra Usar 3 for harvest index, grain yield plant-1, days to 50% flowering (earliness), plant height (dwarf stature), panicle bearing tillers plant-1 and biological yield. Among the female parental lines, IR 58025 was observed as a good general combiner only for seedling height, panicle length, spikelets panicle-1, test weight, biological yield palnt-1. Cross between IR 688897A X Sarjoo 52 , IR 58025 A X 21-2-5-B-1-1, IR 58025 A X Narendra Usar 3 and IR 58025 A X IR 71829-3R-73-1-2-B shown favorable per se performances and higher significant positive SCA effects in related to grain yield plant-1. These combinations proved to be good hybrids based on CMS system in rice.Keywords
Combining Ability, Line X Tester, Rice Hybrids.References
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