Interaction of common beans cultivars of the black group with years, locations and sowing seasons

Implications of predictable and unpredictable environmental factors in common bean VCU trials in Minas Gerais

“…The contribution of the sum of squares of the line source of variation to the total sum of squares (R 2 ) was very small. This fact has been observed in other experiments of this nature (Pereira et al 2010, Torga et al 2013). In principle, this is expected because, especially in the case of the VCU trials conducted in Minas Gerais, the five or six best lines of the breeding programs of Embrapa Arroz e Feijão, UFV, and UFLA are involved; in other words, the lines that participate in the trials were extensively evaluated while they were being obtained, and they are results of high intensity of selection.…”

“…The genotypes x environments interaction has been studied a great deal in the common bean crop (Silva et al 2011, Torga et al 2013. The lines x locations interaction was the most expressive, confirming the need to undertake evaluations in the greatest number of locations possible.…”

“…This effect of the environment on the performance of lines/cultivars of common bean is widely known (Pereira et al 2010, Silva et al 2011, Torga et al 2013). If there is genetic variation among the lines, associated with the wide environmental variation already mentioned, the genotypes x environments interaction is expressive.…”

Common bean genotypes for agronomic and market-related traits in VCU trials

“…A similar result was obtained for the BRS Esplendor cultivar, with a mean yield of 2450 kg ha −1 and in 5 th place in joint analysis. These cultivars stand out from the others because the identification of more stable and adapted cultivars, in addition to more productive ones, has been an alternative widely used by common bean breeding programs in various regions in Brazil (Carbonell et al, 2004;Torga et al, 2013) that allow for more reliable recommendations .…”

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.…”