Evaluation of fungi in seed germplasm before long term storage
1996
Faiad, M.G.R | Wetzel, M.M.V.S. | Salomao, A.N. | Cunha, R. (CENARGEN/EMBRAPA, Brasilia (Brazil). Genetic Resources and Biotechnology National Research Center)
During the period 1982-1992 9,952 accessions of 24 species from field collections and research centers of EMBRAPA were evaluated as to sanitary conditions before storage. Aspergillus and Penicillium were the fungi most frequently found associated with those seeds. The main pathogenic fungi detected were Pyricularia oryzae, Drechslera oryzae and Gerlachia oryzae in rice; Drechslera sorokiniana in wheat; D. teres in barley; Diplodia maydis and Fusarium moniliforme in corn; Colletotrichum lindemuthianum, Rhizoctonia solani, Macrophomina phaseolina, and Sclerotinia sclerotiorum in bean; and Colletotrichum dematium and Phomopsis sojae in soybean. These results showed that seed health tests are extremely important in order to assure the maintenance of high quality germplasm, avoiding the conservation and dissemination of pathogens
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