Methods of Soybean Genotypes Selection in Paraná State, Brazil

Lorena M. Lara, Michel Esper Neto, Hugo Zeni Neto, Alessandro L. Braccini, Fernanda B. G. Anghinoni, Rayssa F. Santos, Luiz H. S. Lima and Alexandre Garcia

Journal of Agricultural Science, 2024, vol. 11, issue 2, 100

Abstract: The soybean crop presents several cultivars available. The performance of each cultivar in the field is associated with its genetic characteristics and the interaction of these with environment. Specific recommendations according to environment are made soybean cultivars release based on adaptability and stability analyzes. This research evaluated twelve soybean cultivars in the northern region of Paraná State Brazil, in order to recommend the most suitable and stable cultivar. The experiment was designed in complete randomized blocks four sites- Maringá, Floresta, Cambé and Apucarana, with four replications, in 2017/2018 growing season. Totaling 48 experimental units per site, that is, a total of 192 in the experiment. The variables evaluated were- one thousand grain mass, productivity, hectoliter weight, number of pods per plant and number of grains per plant. The cultivars were evaluated for adaptability and stability by the methodologies proposed by Lin and Binns (1988) and a bi-segmented regression method according to Cruz et al. (1989). The results indicated that the selection was more reliable when the two methodologies were used, due to their correlation coefficients. Soybean cultivar 3 presented promising behavior in regions studied.

Date: 2024
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