Genetic Variability and Association of Yield Attributing Characters with Grain Yield in Deepwater Rice

  • Bose L. K. (Crop Improvement Division, Central Rice Research Institute) ;
  • Pradhan S. K. (Crop Improvement Division, Central Rice Research Institute) ;
  • Mohanty A. (Crop Improvement Division, Central Rice Research Institute) ;
  • Nagaraju M. (Crop Improvement Division, Central Rice Research Institute)
  • Published : 2005.09.01

Abstract

A study on genetic variability and association of yield attributing characters with grain yield was carried out using 35 deepwater rice genotypes. High genotypic co-efficient of variation (GCV) was observed for plot yield, $EBT/m^2$, plant height and days to $50\%$ flowering (DFF). For all the traits, estimates of the phenotypic co-efficient of variation (PCV) were higher than GCV, indicating presence of environmental influence. High heritability and genetic advance was observed for plot yield, $EBT/m^2$ and plant height. Plot yield had significant positive association with test weight, $EBT/m^2$ and DFF. However, test weight had the maximum direct effect on grain yield

Keywords

References

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