International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2020, Vol. 2, Issue 4
An appraisal of genetic variability and diversity among traditional red rice landraces

Kavya ME, Dushyanthakumar BM, Madhuri R, Gangaprasad S, Mallikarjuna HB, Sudharani N, Dhananjaya BC

The current investigation was carried out during kharif 2019 at Zonal Agricultural and Horticultural Research Station, Shivamogga using Randomised Complete Block Design with an objective of evaluating 30 red rice genotypes comprised of 26 landraces and four varietal checks. Genetic variability parameters like phenotypic and genotypic coefficients of variation were high for number of tillers per plant, number of productive tillers per plant and grain yield per plant. The traits viz., plant height, days to 50 per cent flowering, number of tillers per plant, number of productive tillers per plant, number of grains per panicle, number of filled grains per panicle, test weight, grain length and breadth ratio and grain yield per plant recorded high broad sense heritability along with high genetic advance as per cent of mean. Using Mahalanobis’ D2 analysis genotypes were grouped into four divergent clusters. Cluster Ⅲ and cluster Ⅳ possessed maximum inter cluster distance between them suggesting that the genotypes falling under these clusters are genetically more diverse.
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How to cite this article:
Kavya ME, Dushyanthakumar BM, Madhuri R, Gangaprasad S, Mallikarjuna HB, Sudharani N, Dhananjaya BC. An appraisal of genetic variability and diversity among traditional red rice landraces. International Journal of Ecology and Environmental Sciences. 2020; 2(4): 177-181.