Genetic variability studies for yield and yield components in rice (Oryza sativa L.)
Shreya Dhidhi, Deepak Gauraha, AK Sarawgi and Abhinav Sao
Rice is one of the globe's main cereal crops, feeding hundreds of individuals and serving as a staple food crop for more than two-thirds of India's population. Any crop improvement programme must depend on germplasm owned by numerous research organizations or institutes. To meet the demand, high yielding varieties with good quality traits must be created. The present investigation material consists of 57 rice germplasm accessions including seven checks has been planted in Randomized Block Design, within two replications. Analysis of Variance (ANOVA) indicates that there is a lot of variability within the genotypes. The higher percentage of the genotypic and phenotypic coefficient of variation were obtained for the number of unfilled grains per panicle, number of filled grains per panicle, biological yield, harvest index, the number of effective tillers per plant. The highest heritability found in plant height, the number of filled grains per panicle, biological yield, number of unfilled grains per panicle, 100 seed weight, spikelet fertility percent, panicle length, paddy length, days to 50% flowering, harvest index, suggesting that this features passed down from parents easily in hybridization programme.
How to cite this article:
Shreya Dhidhi, Deepak Gauraha, AK Sarawgi, Abhinav Sao. Genetic variability studies for yield and yield components in rice (Oryza sativa L.). Pharma Innovation 2021;10(10):1057-1059.