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Principal Component Analysis for Yield and Bacterial Leaf Blight (BLB) Disease Resistance in Rice (Oryza sativa L.) Genotypes

Author: Mukul*, P.K. Singh and S.P. Singh

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Abstract

The present investigation was carried out to determine variability among 184 rice genotypes using principal component analysis. First five principal components exhibited more than one Eigen values. PC1 accounted 28.29 % of the total variability contributed by the traits like panicle length, 1000-grain weight, grain weight per plant and AUDPC. The remaining variability of 20.40%, 14.16%, 10.91% and 10.03% was consolidated in component 2, component 3, component 4 and component 5 by various traits like days to 50% flowering, days to maturity, plant height, effective tillers per plant, panicle length, spikelets per panicle, grain weight per plant, 1000 grain weight, grain yield per plant and AUDPC. The first five axes accounted 84.33% of cumulative variance of total variance among 10 characters. Thus the results of principal component analysis revealed, vast genetic variation and the traits contributing for the variation in rice genotypes can be used for various breeding programmes for imp

Keywords

Rice, Variability, Principal Component Analysis, Yield.

Conclusion

Each coefficient of proper vectors expresses the degree of contribution of independent figure with which each primary component is associated, whereas the phenotypic value of each variable gauges the importance and contribution of each component to total variance. Thus, the prominent variables forming different main components and contributing to the interpretation of variability and having a higher retention rate together may be taken into account when using these variables in breeding programmes for yield and bacterial blight resilience. On the basis of result it had concluded that five component viz., PC1, PC2, PC3, PC4 and PC5 contributed 84.33 per cent of total variation.

References

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How to cite this article

Mukul, P.K. Singh and S.P. Singh (2022). Principal Component Analysis for Yield and Bacterial Leaf Blight (BLB) Disease Resistance in Rice (Oryza sativa L.) Genotypes. Biological Forum – An International Journal, 14(1): 386-390.