HETEROSIS IN INTER-VARIETAL HYBRIDS OF RICE (Oryza sativa L.)

N.SAMPATH; S.RAJASEKARAN and P.VIVEKANANDAN

doi:https://doi.org/10.29321/MAJ.10.A02059

Madras Agricultural Journal

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HETEROSIS IN INTER-VARIETAL HYBRIDS OF RICE (Oryza sativa L.)

Author: N.SAMPATH, S.RAJASEKARAN and P.VIVEKANANDAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 76, Issue: sep-sep,

DOI:https://doi.org/10.29321/MAJ.10.A02059

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Abstract

The extent of heterosis for yield components in a set of fourteen intervarietal rice hybrids involving thirteen parents were studied. Substantial heterosis over mid-parent and better parent was observed for the fourteen characters studied. The hybrid Vaigai/IET 4786 was superior with high heterosis for boot leaf area, ear bearing tillers, grains per panicle, grain yield and strau yield.

Keywords: Heterosis. Rice hybrids.

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