Heritability and Genetic Advance Estimation From Parental Lines of Hybrid Rice

Arpita Shrivastava; D. K. Mishra; G. K. Koutu; S. K. Singh

Volume : III, Issue : VII, July - 2014

Heritability and Genetic Advance Estimation From Parental Lines of Hybrid Rice

Arpita Shrivastava, D. K. Mishra, G. K. Koutu, S. K. Singh

Abstract :

Genetic variability studies provide basic information regarding the genetic properties of the population based on which eeding methods are formulated for further improvement of the crop. The estimates of heritability, coefficients of variability and genetic advance computed for 31 yield contributing traits. High GCV and PCV reported for the traits Unfilled spikelets panicle-1, filled spikelets panicle-1, seed yield plant-1, pollen viability, total spikelets panicle-1, effective tillers plant-1, panicle weight plant-1, tillers plant-1, spikelet density, spikelet fertility, biological yield plant-1, harvest index, flag leaf length and culm length. The traits viz., unfilled spikelets panicle-1, filled spikelets panicle-1, seed yield plant-1, panicle weight plant-1, total spikelets panicle-1, effective tillers plant-1, pollen viability, spikelet density, tillers plant-1, spikelet fertility, harvest index, biological yield plant-1, flag leaf width, panicle index, length eadth ratio, head rice recovery, 1000 seed weight, length eadth ratio of decorticated seed, culm length, plant height, flag leaf length, panicle length, decorticated seed width, milling percent, hulling percent, decorticated seed length, seed width and seed length had high heritability accompanied with high genetic advance indicating lesser environmental influence and were under the control of additive gene effect.