Qualidade sanitária de sementes de soja comercializadas na safra 2018/2019

Abstract

Soybean (Glycine max), is of fundamental importance both for human consumption, as animals, with this culture is expanding worldwide. In the state of Mato Grosso, the largest producer in Brazil, increased production is evident, for this, some parameters are associated with high crop yield, including: seeds with good physiological quality, good health status associated with genetic advances and technology that is the foundation for maintaining this growth. Therefore, the objective of the study was to evaluate the sanitary quality of soybean seeds marketed in the 2018/2019 season, through the detection methods using water-agar medium and the test culture with filter paper (blotter-test). 20 were used soybean samples with 16 replicates each, and after 7 days was evaluated by an optical microscope and a stereoscopic microscope. Data were subjected to analysis of variance, and means were compared by Scott-Knott test at the 5% probability Sisvar software. The seeds have a high incidence for the fungi Aspergillus sp. (41.88%), Penicillium sp. (22.13%), Cladosporium sp. (55.75%), Cercospora kikuchii (42.13%) and unidentified bacteria (48.75%). cultivar Cercospora kikuchii (42.13%) and unidentified bacteria (48.75%). cultivar Cercospora kikuchii (42.13%) and unidentified bacteria (48.75%). cultivarP98Y30 RR (lot 4044) shows healthier compared with other analyzed.