Dr. R. S. KULKARNIABDUL BASIR, HABIBI2019-06-132019-06-132008-08-18Th-9144http://krishikosh.egranth.ac.in/handle/1/5810108356A study was undertaken in F2 generation of cross BPT 5204 x HPR 14 to assess genetic variation for plant morphological traits, grain characters, protein and micronutrient content and to understand the interrelationship among developmental traits and grain characters. High PCV and GCV were recorded for number of productive tillers, grain weight, test weight, zinc, manganese and iron. Plant height, number of productive tillers, length/breadth ratio of paddy grain, test weight, protein content and all nutrients studied recorded high heritability and genetic advance. High heritability with low genetic advance was recorded for days to maturity. Significant positive correlation of plant height was observed with number of productive tillers and days to maturity. Days to 50% flowering had positive significant association with grain weight. Days to maturity showed positive significant association with panicle length. Rice kernel length showed positive significant association with rice kernel length/breadth ratio and kernel elongation ratio, while negative significant association was seen with rice kernel breadth. Test weight had positive significant correlation with breadth of paddy grain and rice kernel breadth, while it was negatively associated with length/breadth ratio of paddy grain. Breadth of paddy grain followed by kernel elongation ratio and rice kernel breadth had high positive direct effect on test weight whereas length/breadth ratio of paddy grain had high negative direct effect on test weight. Among the segregants studied B-24-7, A-30-1, B-24-1, B-1-1 land C-22-13, were superior for many traits. Highest protein (20.59%), copper (27.78 ppm). Zinc (37.8 ppm), manganese (96 ppm) and iron (659.4 ppm) was observed in C-23-13, B-32-12, A-26-9, D-25-2 and D-26-2 respectively. Longest rice grains (6.4 mm) were observed in B-24-7, while D-18-3, D-19-1 and D-14-3 were high yielders.ennullThesis