TRATAMENTO FUNGICIDA, INSETICIDA E INOCULAÃÃO COM Bradyrhizobium EM SEMENTES DE SOJA / Insecticide and fungicide treatment and inoculation in soybean seeds with Bradyrhizobium

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

To assure an appropriate establishment of the plants in the field the chemical treatment of seeds has been using, however, some chemical products may difficult the establishment of the symbiosis rizobium-plant. In this work it was aimed to evaluate the quality of treated soybean seeds with fungicides, insecticides, film coating and the nodulation and growth of the plants. In the first essay the seeds were treated with: captan, carbendazim+thiram, carbendazim, carboxin+thiram, difenoconazole, fludioxonil+metalaxil-M, thiabendazole, thiram, tolylfluanid, thiabendazole+thiram, tiofanato-metÃlico and part of the seeds were not treated (control). It was used polymer Disco Agroblue L204Â during the treatment of the seeds, being, later, evaluated by the tests: of germination, cold, emergency and blotter, number and nodules dry matter, length and dry matter of the aerial part in greenhouse. In the second essay the seeds were treated with carbosulfan, clotianidina, fipronil, imidacloprid, tiametoxan and part of the seeds it was not treated with insecticides. The film-coating was accomplished end evaluated like the first essay. In the third essay the seeds were inoculated with Colletotrichum truncatum being used water restriction technique, end later the seeds were treated with the fungicides carbendazin, fludioxonil+metalaxil-M, thiabendazole+thiram, tiofanato metÃlico or caboxin+thiran and part of the seeds it was not treated with fungicides. The film-coating was accomplished in evaluated like the first essay. It is ended that the soybean seeds treatment do not reduction your physiologic quality opposite to insecticides tiametoxan end carbosulfan. There is a hight control of C. truncatum in the treatments whit fludioxonil+metalaxil-M and thiabendazole+thiram and a largest seeds physiological quality. The soybean seeds treatment with tiofanato metÃlico reduce your vigour and plants growth. The fungicides thiabendazole+thiram, captan, carboxim+thiram, tolylfluanid and fludioxonil+metalaxil-M reduce the nodulation and plants growth. The insecticides, used in this research, do not interfere in the nodulation and soybean plants growth when the strain BR86 is used, while for BR96 the nodules dry matter and aerial part dry matter are reduced for the carbosulfan application and imidacloprid.The film-coating do not interfere in the physiological and sanitary quality of seeds, in the nodulation and soybean plants growth.

ASSUNTO(S)

fitotecnia glycine max, polÃmero, tratamento quÃmico, fixaÃÃo biolÃgica de nitrogÃnio, germinaÃÃo, vigor, antracnose glycine max, polymer, chemical treatment, nitrogen biological fixation, germination, vigor, anthracnose glycine max, polÃmero, tratamento quÃmico, fixaÃÃo biolÃgica de nitrogÃnio, germinaÃÃo, vigor, antracnose fitotecnia glycine max, polymer, chemical treatment, nitrogen biological fixation, germination, vigor, anthracnose

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