2015, Issue 9, Volume 7

GENETIC VARIABILITY AND HERITABILITY STUDIES IN RICE (ORYZA SATIVA L.) UNDER SALINE CONDITION

Vanave P.B.*, Vaidya G. B., Dapke J.S., Narawade A.V. and Jadhav B.D.

Department of Genetics and Plant Breeding, Navsari Agricultural University, Navsari

Email: pbvanave@gmail.com

Received-07.09.2015, Revised-14.09.2015

Abstract: Genetic parameters of variability and heritability of different characters were studied in 17 genotypes of rice. The coefficient of variation was highest for plant height followed by grain yield. The maximum genotypic coefficient of variability and phenotypic coefficient of variability were observed for Na+/K+ ratio, straw yield-1, proline content, test weight. The heritability estimates were highest for Na+/K+ ratio, plant height and chlorophyll content. GA as % over mean were higher for Na+/K+ ratio, chlorophyll content, proline content, straw yield plant-1 and test weight. Results  on yield and contributing  characters possesses sufficiently high values of heritability and genetic adavance which can be utilized for further  improvement of rice and evolving a high yielding saline tolerant variety.

Keywords: Rice, Coastal salinity, Variability, Heritability

REFERENCES

Abdul Fiyaz, R, Ramya, K.T., Chikkalingaiah, Ajay B.C., Gireesh C and R. S. Kulkarni (2011). Genetic variability, correlation and path coefficient analysis studies in rice (Oryza sativa L.) under alkaline soil condition. Electronic Journal of Plant Breeding, 2(4):531-537.

Allard, R.W. (1960). Principles of Plant Breeding, John Willey and Sons Inc. Pub., New York, USA.

Burton, G.W. (1952). Quantitative inheritance in grasses. Proc.6th Int. Grassland Cong.1: 277-283.

Das, P.K., Chakraborty,S., Barman, B. and Sarmah, K.K. (2001). Genetic variation for harvest index, grain yield and yield components in boro rice. Oryza. 38 (3&4):149-150.

Johnson, H. W., Robinson, J. F., and Comstrock, R. E. (1955). Estimates of genetic and environmental variability in soybeans. Agron J: 47(7): 314-318.

Karthikeyan. P., Anbuselvam, Y., Elangaimannan R. and Venkatesan, M. (2010). Variability and heritability Studies in rice (Oryza sativa L.) under coastal salinity. Electronic J. Plant Breeding, 1(2): 196-198.

Latif, A. and Zamin, S. M. H. (1965). A study of hertability of four yield contributing characters in rice. Pakistan J. Biol. Agric. Sci. 8: 219-225.

Majumdar, M. K., Dey, R and Banarjee, S. P. (1971). Study on genetic variability and correlation in some rice varieties. Ind. Agriculturist, 15: 191-198.

Shivani, D and Sreerama Reddy, N. (2000). Variability and heritability and genetic advance for morphological and physiological in certain rice hybrids. Oryza 37(3): 231-233.

Singh, R. K. and Chaudhary, B. D. (1985). Biometrical methods in Quantitative Genetic Analysis. Kalyani Publishers, Ludhiana, India, pp 300.

Sivasubramanian, S. and Madhava Menon, P. (1973). Genotypic and phenotypic variability in rice. Madras Agric. J. 60 (9-12): 1093-96.