The investigation in diversity of ninety restorer concluded. As, grain is the prior economic part of any crop, thus variability analysis, based on 18 grain morphological and quantitative traits has provided the significance to this research. Grain diversity study faced a major challenge in collection of diverse genotype in single platform; the problem got sorted through the contribution made by Seed Breeding Farm, JNKVV, Jabalpur, (M.P.). The huge diversion is articulated for the traits -grain length and width, decorticated grain length and grain width, thousand grain weight (g) and decorticated grain shape. ANP 526 depicted the unique morphology along with highest mean yield 39.8g, the specific anthocyanin colouration could signify morphological marker trait during breeding programme. The genetic parameter of variability revealed that thousand grain weight having high mean (23.19), high heritability (97.2) and high genetic advance as percentage of mean (53.21) among all traits and the

Diversity, Hybridization Genetic parameter, DUS guidelines, Grain morphology and Marker trait

The grain being a key contributor of economic yield in rice needed to be evaluated stringently. Therefore, the research orientation is towards extracting the core character responsible for variability and yield. In this experiment, the thousand grain weight was found to have high heritability and high genetic advance. The choice of such trait majorly in paddy would help to differentiate among superior restorer, especially during three line hybrid production programme. Also, on assessment of all genotypes, R 710 has shown highest value of genetic parameter of variability and mean yield, has maximum potential of developing superior recombinant and release of improved hybrids in hybridization breeding programme.

Tiwari, S., Koutu, G. K. and Pathak, N. (2021). Diversity Analysis of Grain Attributes in Restorer Lines of Rice (Oryzae sativa). Biological Forum – An International Journal, 13(2): 386-392.