|Department of Genetics and Plant Breeding,
Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad - 224 229, Uttar Pradesh, India
Maharana Pratap University of Agriculture and Technology, Udaipur - 303 001, Rajasthan, India
|The present investigation was carried out during kharif 2012 at Research Farm of Genetics and Plant Breeding, Narendra Deva University of Agriculture and Technology, Narendra Nagar, Faizabad (Uttar Pradesh). The experimental material comprised of one hundred genotypes of cultivated rice and four standard check varieties (Sarjoo-52, NDR 359, PB- 1 and CSR 30).Observations were obtained for days to 50% flowering, flag leaf area, plant height, panicle bearing tillers per plant, panicle length, number of spikelet’s per panicle, spikelet fertility, 1000- grain weight, kernel length, kernel width, L/B ratio, biological yield per plant, harvest index, grain yield per plant. Analysis of variance showed highly significant differences due to treatments for all the characters. A wide range of phenotypic and genotypic coefficient of variability was observed. The high magnitude (>20%) of PCV along with GCV was observed for grain yield per plant, biological yield per plant, flag leaf area, number of spikelet’s per panicle, panicle bearing tillers per plant, L/B ratio. Whereas, flag leaf area, 1000- grain weight, L/B ratio, kernel width and plant height showed high estimates of heritability. Harvest index, L/B ratio, flag leaf area, number of spikelet per panicle and kernel width showed high genetic advance in percent of mean. The present study revealed that there was highly genetic variability among the tested genotypes, indicating that it could be used for further improvement in rice breeding.