Combining Ability Analysis in Maize (Zia-Maize)

Ten lines as female parents and five testers as male parents were crossed in line x tester matting design. The Inbred lines viz. DMRQPM-60, DMRQPM-28-3, DMRQPM-58, DMRQPM-75, DMRQPM-18, DMRQPM-28-5, DMRQPM-03-101, DMRQPM-03-102, DMRQPM-03-117, DMRQPM-03-118 were selected as lines and five inbred lines viz., DMRQPM-03-104, DMRQPM-03-105, DMRQPM-28-5, DMRQPM-03-107 and DMRQPM-03-121 were selected as testers for line x tester cross. The analysis of variance indicated significant differences among parents, females, males, crosses, females vs. males and parents vs. crosses for almost all the traits. Combining ability analysis showed significant to highly significant differences among the lines, testers and lines×tester. The over all perusal of combining ability lines DMRQPM-03-117, DMRQPM-03-118 and DMRQPM-03-104 are good general combiner for different trait. These line may be used to improve the trait in segregants as well may be used in heterosis breeding also. The crosses DMRQPM-03-101 x DMRQPM-03-107, DMRQPM-28-5 x DMRQPM-03-105, DMRQPM-75 x DMRQPM-03-105, DMRQPM-60 x DMRQPM-03-121, DMRQPM-58 x DMRQPM-03-121 had good sca effects.