Resumen
In the present study the accumulation of oil and protein, yield and nodulation of ten soybean cultivars (BR 16, Embrapa 48, BRS 133, BRS 134, BRS 245 RR, BRS 247 RR, BRS 183, BRS 184, BRS 214, and BRS 232) at three different water regimes in the field (natural rainfall-NR, irrigation-IR and water stress-WS) applied during the reproductive stage were evaluated. It was observed that the cultivar BRS184 had intermediate percentage of protein in the grain (36.32%), highest protein and oil content per ha, although no significant, due its highest yield under water stress. Nodule number and nodule dry mass did not differ significantly from the other cultivars and reduction index based on the nodule number was lower. Additionally the BRS184 was among the cultivars with highest grain yield (NR and IR), intermediate grain protein content (NR) and it did not significantly differ from the other cultivars regarding to grain oil content (NR and IR). Thus the cultivar BRS 184 was considered a promising choice under water stress.