Embrapa launches rust-resistant soybean cultivar at Tecnoshow

Embrapa Soja launched the soybean cultivar (BRSMG 534), in partnership with Fundação Triângulo and Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig) in Tecnoshow 2023, last month.

Embrapa Soja also presented information on four pillars that make up the sustainable production of soybean and that, as research has provided increments in the themes of Advanced Genetics, Bioinputs, Low Carbon Soybean and Digital Agriculture.

Launch soybean – BRSMG 534 is a conventional soybean cultivar with high productivity and production stability which also adds the Shield technology, a line of soybean cultivars that have genes for resistance to Asian rust.

″The Shield cultivar is an important genetic tool in integrated management. Even without dispensing with fungicides, it provides greater efficiency and safety to the chemical management of the disease,″ researcher Roberto Zito explained.

According to the researcher, the cultivar also stands out for being resistant to the primary soybean diseases (bacterial pustule, frog-eye spot, stem canker), moderately resistant to powdery mildew and the two main root-knot nematodes. The cultivar belongs to maturity group 7.2, which is a relevant feature, as it allows a second harvest to be conducted of either corn, cotton or sorghum. BRS MG 534 is recommended for different regions of Goiás (RECs 301, 302, 303, 304 and 401), the Federal District (REC 304), Minas Gerais (RECs 302, 303, 304 and 401), São Paulo (REC 302) and Mato Grosso (REC 402).

Collection of cultivars - In partnership with the Meridional Foundation, Embrapa Soja also presented its collection of soybean cultivars. There are three conventional soybean cultivars (BRS 546, BRS 511, BRS 573), three transgenic cultivars tolerant to glyphosate and the main soybean caterpillars (BRS 1061IPRO, BRS 1003 IPRO, BRS 1074 IPRO and a cultivar with tolerance to glyphosate and dicamba herbicides (BRS 2562 XTD).

BRS 2562XTD is an excellent refuge option for areas with cultivars with the I2X technology with a maturity group between 6.0 and 6.4, due to its precocity. The BRS 2562XTD has high stability and productive performance and adapts to different production environments. In addition, the cultivar allows for early sowing, making it possible to fit into crop succession/rotation systems. These crop attributes may vary due to climate, soil and management, but generally, they follow the characteristics mentioned. As for the reaction of cultivars to diseases, BRS 2562XTD is resistant to stem canker, common soybean mosaic and Phytophthora root rot and moderately resistant to frog-eye spot and powdery mildew. It also has resistance to cyst nematodes (races 3 and 14). It is indicated for Paraná (REC 201), São Paulo (REC 201),

Bioinputs in maize and brachiaria - During Tecnoshow, Embrapa presented results referring to maize seeds inoculated with the bacteria Azospirillum brasilense (strains Ab-V5 and Ab-V6) and how the technology has enabled an average reduction of 25% in cover nitrogen fertilization, considering the dose of 90 kilos (kg) per hectare of nitrogen. ″The technology for inoculating corn with the Azospirillum brasilense bacteria also allows for an average increase of 3.1% in grain productivity,″ explained researcher Marco Antonio Nogueira, from Embrapa Soja.

Embrapa Soja demonstrated the multifunctional pasture inoculation technology, which associates microorganisms with multifunctional properties (Azospirillum brasilense and Pseudomonas fluorescens). This innovation has the potential to increase, on average, 22% the production of pastures with brachiaria, in addition to increasing the absorption of nutrients. Inoculation with Azospirillum bacteria, via seeds or via leaves in established pastures results in an average increase of 13% in the N content and 10% in the K content in the aerial part. In turn, inoculation via seeds or leaves with Pseudomonas allows an increase of 11% in potassium (K) and 30% in phosphorus (P) in the shoot.