Genetic gains from selection on yield were predicted in three soybean populations using original data and data corrected by the variation in agronomic traits of check cultivars. Predicted gains were compared to realized gains after correction for agricultural season effects -caused by environmental differences during the prediction and checking growing seasons -to indicate the best selection strategy and check the influence on yield of selection on the other traits assessed in the field. Individual selection, selection among and within families and combined selection were used for grain yield alone and for simultaneous selection on grain yield, plant height and number of days to maturity traits. Selection was made on F5 generation plants grown in an experimental field in Viçosa, Minas Gerais State during the 1997/98 agricultural season. The experiment used intercalated check cultivars. The results indicated lower within family heritabilities compared to the other types. Little variation was detected in gain prediction due to data correction. At field level, simultaneous selection performed better for grain yield improvement. Simultaneous gains for number of pods per plant, number of seeds per pod and mean weight of one seed, which are primary yield components, were obtained only when selection for the three components was balanced.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.