Evaluation of opaque2 introgressed lines for some grain yield and nutritional traits in maize through L × T analysis
Shamly Gupta and S Lata
A line × tester analysis involving thirty test-crosses generated by crossing ten opaque2 introgressed maize inbred lines with three diverse testers and two standard checks was conducted for different yield and nutritional traits in alpha RBD design replicated twice during kharif 2016. The objectives of this study were to examine combining ability of inbred lines, determine the nature of gene action and enhancement of nutritional traits. Genetic differences were observed from mean squares of treatments for all traits except protein content. The GCA effect revealed that the inbred lines L7, L8 and L10 and the tester T1 were the best general combiners for some yield and nutritional traits. On the basis of extent of heterosis and specific combining ability effects, the hybrids L8 × T1 and L10 × T1 were the best since both were either at par with standard check-1 (Vivek QPM-9) and standard check-2 (Palam Sankar makka-2) or significantly superior for yield and nutritional traits.
How to cite this article:
Shamly Gupta, S Lata. Evaluation of opaque2 introgressed lines for some grain yield and nutritional traits in maize through L × T analysis. Pharma Innovation 2018;7(3):212-219.