Genetic Analysis Of Quantitative Characters In Upland Rice (Oryza Sativa L)

📄 Project Abstract

Four genotypes of upland rice with diverse background have been hybridized and evaluated in a Nested design with three replications in the wet seasons of 2004 and 2005.the experiment was carried out to estimate genetic analysis of quantitative traits and heritability of sonic agronomic traits of yield and yield components. Results indicated significant difference between the four parents with respect to days to 50% glowering, plant height, 2100 grain-weight, number of tillers, grain width, ear weight and yield. High heterosis values were obtained with number of tillers (78%) and yield (40%). This indicated high degree of heterozigosity of parents. Significant scaling test was observed for number of tillers suggesting dominance x dominance of gene at interaction with non-allelic gene interaction effect. Strongest positive correlation coefficients were obtained between grain length and either number of tillers (r = 0.54), or panicle weight (r = 0.53), yield and either 100 grain-weight (r...