COMBINING ABILITY FOR YIELD AND YIELD COMPONENTS IN RICE (Oryza sativa L.)

S. KALAIMANI and M. KADAMBAVANA SUNDARAM

doi:https://doi.org/10.29321/MAJ.10.A02096

Madras Agricultural Journal

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COMBINING ABILITY FOR YIELD AND YIELD COMPONENTS IN RICE (Oryza sativa L.)

Author: S. KALAIMANI and M. KADAMBAVANA SUNDARAM,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 75, Issue: mar-apr,

DOI:https://doi.org/10.29321/MAJ.10.A02096

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Abstract

The combining ability for yield and yield attributes was studied using 7x7 diallel The results revealed the existence of GCA variance in greater magnitude than SCA vari- ance for all the characters studied indicating the scope for improvement by exploiting the available additive components. Among parents IR 8 was the best combiner for all the traits Cult. 340 and ADT 3 for earliness and grain weight, Co. 37 for yield and IR 20 for number of grains per panicle could be the other parents.

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