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Heterosis for some important quantitative traits in rice (Oryza sativa L.)

Author:

Bineeta Devi

Subject Area:

Life Sciences

Abstract:

A study was conducted to estimate the extant of heterobeltiosis, standard heterosis and the nature of gene action for some quantitative traits using line x tester analysis. Among the parents, M1-10-29VL and TM07280 were the best performing parents for seed yield per plant and its components traits. Cross combinations IR77629-72-2-1-3 X IR64, Basmati 370 X CR2703, Sonam X NDR118 and IR7734-4-0 X CR2703 exhibited high significant effects with high per se performance and standard heterosis over PHB71. High magnitude of heterobltiosis and standard heterosis were observed for almost all characters. Cross combinations M1-10-29 VL X NDR118, Basmati 370 X CR2703, TM07280 X NDR118, IR77629 -72-2-1-3 X IR-64 and TM07280 X IR-64 exhibited highly significant heterosis over PHB71.

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