Impacto de tratamentos fitossanitários sobre avarias em grãos de soja afetados por podridão de grãos

Abstract

The soybean is characterized as the main convenience produced in the country, and together with other agricultural products located in Brazil at the top of the global dinner table as responsible for food safety. In the extensive production area, in the different regions where it is cultivated, many have been proven in recent decades, since it is more recent, a problem known as "soybean grain rot.". To address the problem in this case, it is necessary to evaluate different phytosanitary protocols and their impact on the incidence of damage to the soybeans affected by the vegetable pod. The protocols validated were Fungicides (specific site); multisite fungicides; Seed treatment and application time. The soy is produced in a commercial area located in the municipality of Sinop – MT, season 2022/23. After that, ripening was done by manually harvesting the plants and trimming them mechanically. As demonstrated by the UFMT/Sinop post-harvest Laboratory where we will pass through manual cleaning processes; Determination of humidity by the stove master method and classification of the defects according to IN 11 of 2007. The data were analyzed by means of variance analysis, and when significant, undersized to the Scott Knott media test at 5% probability. The results indicate that the protocols at the time of application, multi-treatment fungicides and treatment of seeds, and their respective treatments, for the best results in terms of the total number of damaged seeds, present median, maximum, and minimum values lower than 8%. A comparison between specific and multi-species fungicides shows the superiority of the latter, at the same time as the higher percentage of abnormal seeds, maintaining the general quality of the seeds as Group 1 – Type 1.