Association of grain yield with quality characteristics and other yield components in rice

Correlation studies of various important physico-chemical quality characteristics and yield components with grain yield plant-1 in 10 parents and 25 hybrids revealed that grain yield was positively and significantly associated with kernel breadth while kernel length and length / breadth ratio manifested negative and significant relationship with grain yield plant-1. Kernel length is negatively and significantly associated with total spikelets panicle-1 and test weight while kernel breadth had positive and significant correlation with total spikelets panicle-1, fertile grains panicle-1, test weight and grain yield. Among yield components, total spikelets panicle-1, fertile grains panicle-1 and test weight had positive and significant association while sterile grains panicle-1 and sterility percentage exhibited a negative correlation with grain yield plant-1.