Microbiolization of Arachis hypogaea L. seeds

Peanut (Arachis hypogaea L.) is one of the most widely cultivated and consumed oilseed crops globally, with seed quality being a critical factor for successful cultivation and productivity. Among the main phytopathogenic agents associated with seeds, fungi stand out due to their frequency and the extent of damage they can cause, ranging from the sowing period to post-harvest. In this context, the present study aimed to evaluate the effects of commercial biological products on the sanitary and physiological quality of peanut seeds. The experiment was conducted in the laboratory and greenhouse of the Phytopathology Laboratory at CCA/UFPB, Areia-PB, Brazil. The treatments included: Vacciplant®, Shocker®, Tricho Turbo®, Auin®, Ecotrich®, Captana®, and a control using sterilized distilled water (SDW). The following parameters were evaluated: fungal incidence, seed moisture content, germination, first count, germination and emergence speed indices, as well as seedling growth and dry mass. All treatments reduced the incidence of Penicillium sp., Fusarium sp., Chaetomium sp., and Aspergillus sp. The highest germination speed index (GSI) was observed with Ecotrich® (87.29). The products Ecotrich®, Auin®, and Captana® promoted greater shoot and root growth, while Shocker®, Auin®, and Captana® were most effective in increasing shoot dry mass. All treatments outperformed the control in seedling emergence, with Captana® being the most effective. The results indicate that biological products are a promising alternative for peanut seed treatment, with positive effects on seed health, germination, and vigor.