Promoção de crescimento de plântulas de soja, in vitro, por microrganismos

Abstract

The soy (Glycine max) is a closer crop in Brasil, in the region and West Frontier of the state, a crop presents itself as an alternative for rotation with irrigated rice in floodplain areas. The objective of the present work was to evaluate the effect of microorganisms in promoting the in vitro growth of soybean seedlings. The experiment was carried out at the Laboratory of Phytopathology and Soil Microbiology at the Universidade Federal do Pampa - Campus Itaqui. Soybean seeds of the cultivar Brasmax Ponta Ipro were used. The experimental design was a completely randomized design (CRD), with seven treatments and four replications. The treatments were: T1-Witness; T2-Commercial product based on Bacillus methylotrophicus; T3- isolated U4; T4-isolated U13; T5-Isolated M3 and T6-Isolated I14. The variables analyzed were: length, green and dry matter of the root and shoot of soybean seedlings. The data were found in the analysis of variation using the SISVAR program, making a comparison between the treatments with the averages of the evaluations using the Scott & Knott test with 5% probability. T2 (B. methylotrophicus) shows gains in dry matter, green matter and length for shoot and root of the analyzed soybean seedlings. We emphasize that the potential of the studied formulations must be analyzed under field conditions.