Adaptability and Stability of Soybean Cultivars in Lowland Production System

[...]there is a knowledge gap regarding the characterization of the stability and adaptability of soybean cultivars according to location, year and interaction with the environment (GEI) in the soybean lowland production system (Romanato et al., 2016). [...]studies are necessary to evaluate the adaptability and stability of soybean cultivars in areas traditionally grown with flooded rice in the lowland production system. [...]the objective was to study the adaptability and stability of soybean cultivars in the lowland production system of subtropical environment. The soybean cultivars maturity groups ranging from 4.8 to 8.2 and determinate and indeterminate growth type. [...]the evaluated cultivars represent all maturity groups and growth types grown in the lowland production system in the Southern Brazil. The analysis of adaptability and stability allows the identification of the most responsive cultivars to the environment with greater yield predictability. [...]when the regression coefficient is equal to the unity (ß = 1), it is considered that the cultivars show general or wide adaptability; when the regression coefficient is higher than the unity (ß > 1), the cultivars show adaptability to favorable environments, and when lower to the unity (ß < 1), it is adaptability to unfavorable environments.