Five maize inbred lines and their 10 direct crosses produced through half-diallel scheme were evaluated with two checks during kharif-2014 for grain yield and its component traits. The crosses namely JP25 W95 × CM-138 and CML-439 × CM-138 recorded higher level of economic heterosis for grain yield. Combining ability analysis suggested the preponderance of non-additive gene action for majority of the traits viz., grain yield, 100- kernel weight, ear length, ear girth and number of grain rows per cob. | Combining ability and gene action for grain yield and its component traits in yellow grained single cross hybrids of maize Zea mays L.
