Muhammad Saif-ur-Rasheed
Not Available
Hafeez Ahmad Sadaqat
Not Available
Muhammad Babar
Not Available
ABSTRACT
Investigation of path coefficient analysis for yield and yield components in rice (Oryza sativa L.) was conducted involving 15 genotypes. Analysis of variance indicated highly significant differences among the genotypes for all the traits studied. Covariance studies reflected significant to highly significant as well as negative differences among majority of character combinations. Broad sense heritability estimates for productive tillers per plant, grain yield per plant and plant height ranged from 0.55 to 0.705. All the traits viz. total number of tillers, number of productive tillers, flag leaf area, straw yield, harvest index and fertility index except plant height revealed significant genotypic correlation to grain yield. Among the characters studied, harvest index depicted the highest direct contribution of 0.665 and fertility index show highest indirect contribution of 0.873 towards grain yield. Path coefficient analysis demonstrated that harvest index, straw yield and fertility index should be improved for the improvement of grain yield.
PDF References Citation
How to cite this article
Muhammad Saif-ur-Rasheed, Hafeez Ahmad Sadaqat and Muhammad Babar, 2002. Correlation
and Path Co-efficient Analysis for Yield and its Components in Rice (Oryza
sativa L.). Asian Journal of Plant Sciences, 1: 241-244.
DOI: 10.3923/ajps.2002.241.244
URL: https://scialert.net/abstract/?doi=ajps.2002.241.244
DOI: 10.3923/ajps.2002.241.244
URL: https://scialert.net/abstract/?doi=ajps.2002.241.244
REFERENCES
- Burton, W.G. and E.H. Devane, 1953. Estimating heritability in tall fescue (Festuca arundinacea) from replicated clonal material. Agron. J., 45: 478-481.
CrossRefDirect Link - Buu, B.C. and D.X. Truong, 1988. Path analysis of rice grain yield under saline condition. Int. Rice Res. Newslett., 13: 20-21.
Direct Link - Dewey, D.R. and K.H. Lu, 1959. A correlation and path-coefficient analysis of components of crested wheatgrass seed production. Agron. J., 51: 515-518.
CrossRefDirect Link - Khan, M.A., H.A. Sadaqat, M.Z. Iqbal and M. Tariq, 1991. Interrelationship and heritability in some new rice genotypes. J. Agric. Res., 29: 15-22.
Direct Link - Reeve, E.C.R., 1955. The variance of genetic correlation coefficients. Biometrics, 11: 357-374.
Direct Link - Robertson, A., 1959. The sampling variance of the genetic correlation coefficient. Biometrics, 15: 469-485.
CrossRefDirect Link