Description
Eight argentine land races of maize (1 to 8) were evaluated in a diallel mating scheme for ear, stover and total digestible dry matter yield. For the average of four environments, the crosses 1x2 and 1x4 do not show significant differences with the best check (Cargill Semiden 5) for total digestible dry matter yield. Using the Gardner and Eberhart diallel analysis only the sum of squares of cultivars for stover digestible dry matter yield was significant, suggesting that additive effects are very important in controlling this trait, while for ear digestible dry matter yield both additive and non-additive effects are important. This conclusion implies that if the parent populations are improved, the breeding strategies will need to be different depending on the plant characteristic to be selected.
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General and Specific Combining Ability in Forage Maize Aptitude Part 2: Land Races
Eight argentine land races of maize (1 to 8) were evaluated in a diallel mating scheme for ear, stover and total digestible dry matter yield. For the average of four environments, the crosses 1x2 and 1x4 do not show significant differences with the best check (Cargill Semiden 5) for total digestible dry matter yield. Using the Gardner and Eberhart diallel analysis only the sum of squares of cultivars for stover digestible dry matter yield was significant, suggesting that additive effects are very important in controlling this trait, while for ear digestible dry matter yield both additive and non-additive effects are important. This conclusion implies that if the parent populations are improved, the breeding strategies will need to be different depending on the plant characteristic to be selected.
