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

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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