Character association and component analysis in rice

Correlation and component analysis were performed for 12 characters in 20 genotypes of rice to find out the character association and their direct and indirect effects on seed yield. A positive and significant correlation was found for the characters, panicle length, number of spikelets panicle-1, flag leaf length, flag leaf width, biological yield and harvest index with grain yield plant-1 at genotypic level. Highly significant and positive correlation was observed between number of tillers and number of panicles plant-1. Component analysis revealed higher direct effects of harvest index, biological yield, number of tillers and flag width, suggesting that these characters may be given prime attention further improve the genetic yield potential of rice.