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Soybean seed health after six months of storage

Seeds infected by pathogens in the field can have their health altered during storage, through viability loss. The objective of the present study was to verify the effect of storage of soybean seeds in their health quality, inoculated with pathogens in field conditions. The soybean BRS 133, MSoy 6101, Conquista and Liderança varieties were inoculated, in the field, by pulverization with a spore suspension of two isolates of Colletotrichum dematium var. truncata and Phomopsis sojae. After harvest, seed health tests were carried out, without and with surface disinfection of the seeds with sodium hypochlorite at 1% for 3 min. After this analysis, the seeds were stored in a cold chamber for six months, and seed health tests were newly performed. The results of the work allow concluding that the storage of the seeds in cold chamber, for a period of six months, reduced the incidence of the pathogens Phmopsis sojae and Colletotricum dematium var. truncata in the seeds.

Glycine max; seed pathology; Colletotrichum dematium var. truncata; Phomopsis sojae


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