Tratamento de sementes com a utilização de Bacillus aryabhattai em diferentes doses na cultura da soja

• DOI: https://doi.org/10.22533/at.ed.6492413046

• Palavras-chave: Bactéria, Déficit hídrico; Glycine max (L.); Produtividade.

• Keywords: Stomatal opening; Water deficit; Glycine max (L.); Productivity.

• Abstract: Soybean is one of the main species cultivated in the world, for its development, water is mainly needed, so the producer seeks alternatives to combat water stress in critical moments of the culture. This work aims to evaluate the effect of Bacillus aryabhattai at different doses on soybean. The experiment was conducted in Campina da Lagoa - PR, sowing was carried out in October 2022 and data collection in February 2023. The experimental design was in randomized blocks (DBC), consisting of six treatments and five replications, totaling thirty experimental plots. The treatments used were the following dosages of the AURAS product: 0 mL, 2 mL, 3 mL, 4 mL, 5 mL and 6 mL, in the seed treatment. The following parameters were evaluated: plant height, root length, stem diameter, number of pods per plant, height of insertion of the first pod, productivity in hectare, and mass of a thousand grains. Data were subjected to analysis of variance (ANOVA) and means adjusted to quadratic regression at 5% significance, with the aid of the statistical program ASSISTAT. Under the conditions of this experiment, it was concluded that when the plants were inoculated with the product based on Bacillus aryabhattai, there was a statistical difference for the variables of plant height, root length and mass of a thousand grains, as for the variables of number of pods per plant, height of insertion of the first pod, stem diameter and productivity there was no statistical difference, despite the numerical increase of 7.9 bags ha -1 in productivity.