Semeadura agrupada de soja na região do Alto Uruguai do Rio Grande do Sul

Abstract

The objective of this work was to evaluate the grouped and conventional sowing in soybean cultivars, in order to promote a comparison between the systems and the cultivars. The experiment was performed in a randomized complete block (DBC), with four replicates for each treatment. The soybean cultivars BMX LANÇA IPRO, DM 5958 RSF IPRO, NA 5909 RG, PIONEER 95R51, are sown in the pooled and conventional systems. It was evaluated the variables that are part of the components of grain yield, number of pods and grains per plant, mass of one thousand grains and the results of productivity among the different cultivars. The cultivar DM 5958 showed the highest productivity, followed by NA 5909 and BMX Lança, all in a pooled system. Then, the cultivars, NA 5909, DM 5958 and BMX Lança appear, in a conventional system. The cultivar with lower productivity was Pioneer 95R51 in both sowing systems. The number of branches, pods and grains per plants and the mass of one thousand grains were also evaluated. It was verified that the cultivar BMX Lance in a grouped system presented a greater number of branches and pods and the NA 5909 the greater number of grains. The mass of a thousand grains did not result in significant differences between systems nor between cultivars.