| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000420278 |
| ISSN: | 0001-3765 |
| Authors: | Anesio, Arnon H.C1 Santos, Marcia V1 Silveira, Raul R1 Ferreira, Evander A2 Santos, José B. dos2 Silva, Leandro D. da1 |
| Institutions: | 1Universidade Federal dos Vales do Jequitinhonha e Mucuri, Departamento de Zootecnia, Diamantina, Minas Gerais. Brasil 2Universidade Federal dos Vales do Jequitinhonha e Mucuri, Departamento de Agronomia, Diamantina, Minas Gerais. Brasil |
| Year: | 2018 |
| Season: | Jun |
| Volumen: | 90 |
| Number: | 2 |
| Pages: | 1717-1732 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | The aim of this work was to determine the persistence of auxinic herbicides applied on tropical pasture and toxicity for succeeding crops. The herbicides were applied in an area of dystrophic red‒yellow latosol with pasture infested of weeds. At 40, 80, and 280 days after application of herbicide, the soil samples were collected at depths of 0 to 20 cm. Soil with residues of 2,4-D, 2,4-D + picloram, triclopyr, and a soil without herbicide application were analyzed with six replicates. Seven crops were cultivated in these soils: cucumber ( Cucumis sativus L.), velvet bean [ Mucuna pruriens (L.) DC.], pigeon pea [ Cajanus cajan (L.) Millsp.], alfalfa ( Medicago sativa L.), lablab bean [ Lablab purpureus (L.) Sweet], corn ( Zea mays L.), and sorghum [ Sorghum bicolor (L.) Moench]. The plants of cucumber, pigeon pea, and alfalfa were the most susceptible to the auxinic herbicide residues. However, the lablab bean was the only one among the dicot evaluated that showed tolerance to the 2,4-D + picloram residual when cultivated in soils at 280 days after application of herbicide. Corn and sorghum showed lower chlorophyll content in soils with 2,4-D + picloram residual up to 80 days after application of herbicide |
| Disciplines: | Biología, Agrociencias |
| Keyword: | Fisiología vegetal, Fitotecnia, Suelos, Regulador del crecimiento, Residuo de herbicida, 2,4-D, picloram, Triclopir |
| Keyword: | Plant physiology, Crop husbandry, Soils, Growth regulators, Herbicide residue, 2,4-D, picloram, Triclopyr |
| Full text: | Texto completo (Ver PDF) |
