Asian Journal of Bio Science

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Study of Heritability and Gene Action Using CMS Line in Hybrid Rice (Oryza sativa L.)


Affiliations
1 Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), India
     

   Subscribe/Renew Journal


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.
Subscription Login to verify subscription
User
Notifications
Font Size


  • Allam, C.R., Jaiswal, H.K., Qamar, A. ,Venkateshwarlu, C. 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 (2) : 506-511.

  • Hanson, W. D. (1963). Heritability. In: Statistical genetics and plant breeding,Washington DC, USA, pp: 125-140.

  • Kempthorne, O. (1957). An introduction to genetical statistics. (Ed.) John Wiley and Sons, Inc.NEWYORK, USA.

  • Ketan, R. and Sarkar, G. (2014). Studies on variability, heritability, genetic advance and path analysis in some indigenous Aman rice (Oryza sativa L.) J. Crop & Weed, 10 (2) : 308-315.

  • 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.

  • Panse V.G. (1957).Genetics of quantitative characters in relation to plant breeding. Indian J. Genet.,17: 318-328.

  • 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). Estimates of heritability and degree of dominance in corn. Agro. J., 41: 353-359.

  • 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.


Abstract Views: 298

PDF Views: 1




  • Study of Heritability and Gene Action Using CMS Line in Hybrid Rice (Oryza sativa L.)

Abstract Views: 298  |  PDF Views: 1

Authors

Sujeet Kumar
Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), India
Alok Kumar Singh
Department of Genetics and Plant Breeding, Pilikothi Farm of Tilak Dhari Post Graduate College, Jaunpur (U.P.), India

Abstract


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