Heritability and genetic advance estimates for agronomic traits in rice
1993
Ali, S.S. | Jafri, S.J.H. | Khan, M.G. | Butt, M.A. (Rice Research Inst., Kala Shah Kaku (Pakistan))
Broad sense heritabilities and relative expected genetic advance were computed for plant height, number of tillers per plant, panicle length, number of spikelets per panicle, number of grains per panicle, spikelet density, 100-grain weight and grain yield per plant from F2 population obtained from twelve rice crosses involving Basmati 385, 4439, 4048-3 and IR-6 rice varieties/lines. Generally high heritabilities were indicated for grain yield and its various components. All the characters showed a quantitative pattern of inheritance. Particularly, the crosses 4048-3x4439, 4048-3 x Basmati 385, 4439 x Basmati 385 and IR-6 x 4048,4048-3 exhibited high heritability and greater relative expected genetic advance which offered promise for effective selection and high yield potential.
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