GENETIC COMPONENTS OF VARIATION IN RICE

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Published: Feb 25, 1993
DOI: https://doi.org/.
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Keywords:
Orym sativa, gene action, heritability, biparental mating.

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R. LOKAPRAKASH
Department of Plant Breeding and Genetics, UAS, Bangalore 560065
G. SHIVASHANKAR
Department of Plant Breeding and Genetics, UAS, Bangalore 560065
M. MAHADEVAPPA
Department of Plant Breeding and Genetics, UAS, Bangalore 560065
B. T. SHANKARE GOWDA
Department of Plant Breeding and Genetics, UAS, Bangalore 560065
R. S. KULKARNI
Department of Plant Breeding and Genetics, UAS, Bangalore 560065

Abstract

Genetic analysis of components of variation for yield and yield components revealed the importance of both additive and non-additive type of gene action in the inheritance of characters, in a 7 x 7 dialIel study. However, dominance component was higher than the additive component for number of productive tillers per plant, panicle weight, panicle length, lOOO-grain weight, number of fertile spikelets per panicle, yield per plant and harvest index and these traits had low narrow sense heritability. Plant height had high heritability. The breeding techniques to exploit the genetic components are discussed.

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How to Cite
LOKAPRAKASH, R., SHIVASHANKAR, G., MAHADEVAPPA, M., SHANKARE GOWDA, B. T., & KULKARNI, R. S. (1993). GENETIC COMPONENTS OF VARIATION IN RICE. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 53(01), 4–7. https://doi.org/.
Issue
Vol. 53 No. 01 (1993): Indian Journal of Genetics and Plant Breeding
Section
Research Article
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