O TRATAMENTO COM PRODUTOS FITOSSANITÁRIOS PODE AFETAR A QUALIDADE DAS SEMENTES DE SOJA?

Abstract

Phytosanitary seed treatment is a common practice in agriculture to protect crops against diseases and pests, aiming to improve plant germination and development. Evaluating the effectiveness of these treatments is crucial to guarantee seed quality and the success of agricultural production. Therefore, the objective of this study was to investigate the effects of different phytosanitary products on the physiological aspects of seeds. Therefore, the objective of this work was to subject soybean seeds to nine different phytosanitary treatments and evaluate the physiological aspects through specific tests, including germination, accelerated aging, first count, final emergence and emergence speed index. The treatments were: Control (T1) without application of products, Votivo Prime® (T2), Avicta® (T3), Nemat® (T4), Cruiser® (T5), Ecotrich® (T6), Maxim XL® (T7) , Certeza N® (T8), Presence® (T9), and tests were carried out under controlled environmental conditions, following standardized procedures. The results indicate that metalaxyl-m + fludioxonil have negative impacts on several aspects analyzed, while thiomethoxam has the best aspects in physiological parameters (vigor, growth and uniformity) by Vigor-S®. Once again, treatment with metalaxyl-M + fludioxonil (T7) presented the best results in the indices evaluated both in the Vigor S system and in the traditional analysis system. However, in the traditional one there were higher average values in the three aerial parts, root system and total length, as the latter is carried out at a later date than the traditional one. Additionally, biometric data evaluated by the Vigor S system showed the treatments thiomethoxam (T5) and metalaxyl-m + fludioxonil XL (T7) with the best results on seedling performance, presenting higher values in vigor and growth. This suggests that these treatments may have beneficial impacts on the initial phase of seedling germination and growth. The use of thiomethoxam and metalaxyl-M + fludioxonil has a beneficial effect on the physiological quality of soybean seeds.