Complex interaction between genotypes and growing seasons of carioca common bean in Goiás/Distrito Federal

Abstract

The objectives of this study were to assess the importance of the complex interaction between common bean genotypes and growing seasons in the state of Goiás and the Distrito Federal and verify the need for evaluation and indication of cultivars for each season. Yield data of 16 genotypes in 16 trials conducted in two growing seasons (winter and rainy) were used. The coefficient of determination was estimated in the analyses of variance with decomposition of the genotype x environment interaction. The complex percentage of the interaction was estimated and the Spearman correlation between seasons. Differences were detected between seasons and presence of genotype - season (GS) interaction, with greater significance than the other double interactions with genotypes. The correlations indicated a predominantly complex GS interaction. This predominantly complex nature of the GS interaction calls for an assessment of the genotypes in both seasons, which may however identify cultivars with general adaptation.

Agronomic performance and stability of andean common bean lines with white grains in Brazil

“…Average yields were lower (Table 3) than registered with Mesoamerican lines, in studies developed in the same regions (Melo et al, 2007;Oliveira et al, 2006;Pereira et al, 2011;2012), validating the observation that Andean lines are less productive than Mesoamerican ones (Gonzales et al, 2009). The BRS Radiante control, which has 'rajado' grains, was the most productive line (2082 kg ha -1 ), statistically different from other genotypes (Table 3).…”

“…Moreover, it was examined different years (2007, 2008 and 2009) and sowing times (rainy, dry and winter). The lines x environments interaction was significant and points out that, as usually found for Mesoamerican lines (Melo et al, 2007;Oliveira et al, 2006;Pereira et al, 2011;2012), the performance of Andean lines in Central Southern Brazil is also influenced by the different response of lines to these environments, and therefore it is necessary to evaluate lines in several environments.…”

“…For the cultivation of common bean, numerous studies have shown the presence of such interaction, mainly for grain yield and with Mesoamerican lines (Melo et al, 2007;Pereira et al, 2011;2012;Oliveira et al, 2006). Thus, one should seek alternatives to mitigate and/or take advantage from the interaction effects, including the use of methods for analysis of stability and adaptability, which provide detailed information about the behavior of cultivars, such as predictability and responsiveness to environmental variation (Cruz et al, 2004).…”

Common bean elite lines cultivated under nitrogen fertilization and inoculation with Rhizobium tropici

“…Interaction lines by locations-years was also significant (Table 1), indicating the existence of differential response of lines upon locations-years, which is frequently reported for the common bean crop (FARIA et al, 2013), including for the Brazilian savanna considering evaluations in the same growing season (PEREIRA et al, 2011;TORGA et al, 2013). Differently, the line by N sources was not significant, meaning that the performance of the lines was coincident in both N conditions, i.e.…”

Decomposition of the interaction of common black bean group genotypes with the environment

“…Some studies were conducted on the carioca common bean commercial type in the states of Minas Gerais [2], Goiás and Distrito Federal [9] and in Paraná and Santa Catarina [10]. In Minas Gerais and Goiás, the most significant interactions were genotypes × sowing season and genotypes × years, and in Paraná and Santa Catarina, genotypes × locations was the most significant.…”