Asian Journal of Bio Science

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Correlation and Path Analysis of Yield and Yield Attributes in Local Rice Cultivars (Oryza sativa L.)


Affiliations
1 Department of Genetics and Plant Breeding, G.K.V.K., University of Agricultural Sciences, Bengaluru, Karnataka, India
2 Department of Genetics and Plant Breeding, College of Agriculture, U.A.S. (B), Shimoga, Karnataka, India
     

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The associations among the yield components and direct and indirect influence of yield components on the grain yield of local rice were investigated at Agricultural college farm, Navile, Shimoga. The experiment was laid out in a 10 x 10 Simple Lattice Design with two replications which consisted of 100 local genotypes during Kharif 2010. The correlation analysis indicated that grain yield was significantly associated with panicle length, test weight, number of tiller per plant, number of productive tiller per plant, number of spikelet per panicle, per cent spikelet fertility and amylase per cent. Path co-efficient analysis revealed that days to 50 per cent flowering, plant height, panicle length, panicle number, number of productive tiller per plant, per cent spikelet fertility and amylase per cent had positive direct effect on grain yield. Hence, selection on these traits could be suggested to bring simultaneous improvement of yield and yield attributes.

Keywords

Correlation, Path Analysis, Rice, Yield
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  • Correlation and Path Analysis of Yield and Yield Attributes in Local Rice Cultivars (Oryza sativa L.)

Abstract Views: 307  |  PDF Views: 0

Authors

T. Basavaraja
Department of Genetics and Plant Breeding, G.K.V.K., University of Agricultural Sciences, Bengaluru, Karnataka, India
M. Asif
Department of Genetics and Plant Breeding, G.K.V.K., University of Agricultural Sciences, Bengaluru, Karnataka, India
S. K. Mallikarjun
Department of Genetics and Plant Breeding, G.K.V.K., University of Agricultural Sciences, Bengaluru, Karnataka, India
S. Gangaprasad
Department of Genetics and Plant Breeding, College of Agriculture, U.A.S. (B), Shimoga, Karnataka, India

Abstract


The associations among the yield components and direct and indirect influence of yield components on the grain yield of local rice were investigated at Agricultural college farm, Navile, Shimoga. The experiment was laid out in a 10 x 10 Simple Lattice Design with two replications which consisted of 100 local genotypes during Kharif 2010. The correlation analysis indicated that grain yield was significantly associated with panicle length, test weight, number of tiller per plant, number of productive tiller per plant, number of spikelet per panicle, per cent spikelet fertility and amylase per cent. Path co-efficient analysis revealed that days to 50 per cent flowering, plant height, panicle length, panicle number, number of productive tiller per plant, per cent spikelet fertility and amylase per cent had positive direct effect on grain yield. Hence, selection on these traits could be suggested to bring simultaneous improvement of yield and yield attributes.

Keywords


Correlation, Path Analysis, Rice, Yield

References