COMBINING ABILITY ANALYSIS FOR MATURITY AND YIELD ATTRIBUTES IN SWEET CORN ACROSS ENVIRONMENTS

Early maturity and genotype by environment interaction (GEI) have always been challenging concerns for breeders in selecting appropriate parents breeding programs. The presented study aimed to investigate early the dimension of gene action, as well as, assess performance half-diallel populations using eight advanced sweet corn inbred lines their 28 F1 hybrids with two commercial checks yield-related traits spring 2018 at Nowshera (plain) Swat (hilly) areas, Khyber Pakhtunkhwa, Pakistan. Analysis revealed significant differences among genotypes studied over both locations. General combining ability (GCA) effects were all agro-climatic conditions, except 100-kernel weight, specific (SCA) relevant grain yield GCA-SCA ratio indicated dominance which also gained support higher values SCA than GCA variances. Based on results, identified SWTS-1-8 SODS-1 serve good general combiners like earliness attributes, making them better improve stated characteristics corn. However, hybrids, i.e., NARCCCRI-19 × CCRI-34 Swat, showed best maturity. Likewise, SWTS-1-4 CCRIS-34, emerged desirable respectively. mentioned can be a source germplasm improvement, breaking through undesirable linkages future