Determination of Genotype X Environment Interactions of Yield and Yield Components in Maize
2021
Cetin, Abdulkadir | Soylu, Suleyman
This study was conducted to determine the adaptation and stability parameters of yield and yield components of dent corn hybrid cultivars at four different environments. The experimental design were Completely Randomized Block Design with three replications. Experiments were estabilished in Mersin, Adana, Manisa and Sakarya locations. Regression coefficient (bi), deviation from regression (S2di), determination coefficient (Ri2 ), coefficient variation (CV) were evaluated as stability parameters. Hybrids cultivars were evaluated based on total 16 characters in all locations. Cultivar x environment interactions were found significantly for grain yield, tasselling. GDD for tasselling, plant height, grain weight per ear and harvest grain moisture. Grain yield of cultuvars were changed between 1419 kg da-1 (Manisa locations)–1140 kg da-1 (Adana locations). According to stability parameters (bi, S2di, CV) OSSK 713 was the most stable cultivar which had the highest grain yield.
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