Efficient dose of Bacillus subtilis UFMT-Pant001 as a plant growth promoter in soybean under greenhouse conditions

Abstract

The potential for increasing soybean productivity and reducing diseases has become evident for Bacillus spp. The objective of this study was to evaluate the efficiency of B. subtilis strain UFMT-Pant001 as a plant growth promoter in soybean under greenhouse conditions. Four independent experiments were conducted in a greenhouse using a B. subtilis UFMT-Pant001 liquid inoculant at 1x109 CFU mL-1. The results showed significant increases in biomass, nodulation, nutrients in the shoot, number of internodes, and root length in soybean cultivars inoculated with B. subtilis UFMT-Pant001 in greenhouse experiments. Positive effects on soybean biomass and other evaluated characteristics were observed with different doses of B. subtilis UFMT-Pant001, with the best results observed when doses of 200 to 300 mL were used for 50 kg of seeds. The use of B. subtilis UFMT-Pant001 did not interfere with soybean nodulation and contributed to an increase in nodule number and weight.