Genetic variability, correlation and path coefficient analysis for yield and yield components in transplant aman rice (Oryza sativa L.)

Authors

  • Ripon Kumar Roy Biotechnology Division, Bangladesh Rice Research Institute, Gazipur-1701
  • Ratna Rani Majumder Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur-1701
  • Shahanaz Sultana Biotechnology Division, Bangladesh Rice Research Institute, Gazipur-1701
  • ME Hoque Biotechnology Division, Bangladesh Rice Research Institute, Gazipur-1701
  • MS Ali Biotechnology Division, Bangladesh Rice Research Institute, Gazipur-1701

DOI:

https://doi.org/10.3329/bjb.v44i4.38566

Keywords:

Genetic variability, Yield components, Correlation, Path coefficient analysis

Abstract

Analysis of variance revealed significant differences among the genotypes for all the traits. Flag leaf area (0.643**), productive tillers per plant (0.450**), 1000-grain weight (0.785**) and harvest index (0.920**) showed positive and strong significant association with grain yield per plant at genotypic level whereas plant height (–0.418*) and per cent spikelet sterility (–0.489**) possessed significant negative correlation with grain yield per plant. Flag leaf area (0.157) productive tillers per plant (0.481), 1000-grain weight (0.228), growth duration (0.080) and harvest index (0.544) exhibited direct effect on grain yield. Considering the correlation and path analysis flag leaf area, productive tiller per plant, 1000-grain weight and harvest index are important characters to be considered for yield improvement.

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Published

2018-10-21

How to Cite

Roy, R. K., Majumder, R. R., Sultana, S., Hoque, M., & Ali, M. (2018). Genetic variability, correlation and path coefficient analysis for yield and yield components in transplant aman rice (Oryza sativa L.). Bangladesh Journal of Botany, 44(4), 529–535. https://doi.org/10.3329/bjb.v44i4.38566

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Articles