Data/hora: 22/06/2024 19:42:48

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 05/11/1993
Data da última atualização: | 31/08/2020
Autoria: | CERDEIRA, A. L.; VOLL, E.
Afiliação: | ANTONIO LUIZ CERDEIRA, CNPSO; ELEMAR VOLL, CNPSO.
Título: | Effects of metribuzin on soybean cultivars in Brazil.
Ano de publicação: | 1981
Fonte/Imprenta: | In: WEED SCIENCE SOCIETY OF AMERICA, 1981, Las Vegas. Abstracts. Champaign: Weed Science Society of America, 1981.
Páginas: | p.138
Idioma: | Inglês
Conteúdo: | Experiments were conducted in 1979 and 1980 at the National Soybean Research Center, EMBRAPA, Londrina, PR., Brazil, to study the effects of metribuzin on soybean cultivars. The center is located at 23. 22' S, 51. 10' W, and 585 m of altitude. The following cultivars were studied in the greenhouse, and in nutrient solution containing 0,125 ppm of metribuzin: 'Davis', 'IAC-4', 'Santa Rosa', 'Campos Gerais', 'Vicoja', 'Parana', 'Lancer', 'Bragg', 'BR-1', and 'Bossier'. Each cultivar was compared with its check without metribuzin. In terns visual evaluation, 'Campos Gerais' was the most affected cultivar in nutrient solution, followed by 'Bragg' and 'Bossier'. Metribuzin affected the height only of 'Campos Gerais'. Dry weight was measured and 'Campos Gerais'weight 15% of its check, 'Bossier' 59%, 'Santa Rosa' 72%, 'Bragg' 74%. The other cultivars were not significantly affected. The same cultivars were planted in field conditions with metribuzin applied preemergence at 0,49 and 0,98 Kg/ha with a check for each cultivar. The soil contained 80% clay and 3,0% organic matter. In the field, also metribuzin affectd the height only of "Campos Gerais' when applied at 0,98 Kg/ha. There was a tendency of increasing injury with increasing rates, especially with 'Campos Gerais'. In conclusion, only 'Campos Gerais' was deeply affected by metribuzin at 0,98 Kg/ha under field conditions, and at 0,125 ppm in  nutrient solution. The cultivars 'Bossier', 'Santa Rosa', and 'Bragg' were not significantly affected under field ...
Palavras-Chave: | Herbicide; Methribuzin; Soya; Soybean.
Thesaurus Nal: | chemical control; weeds.
Categoria do assunto: | --
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (1631-1) - ADD - SP - DD -  -  -  - DIS