| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000325144 |
| ISSN: | 1679-9275 |
| Authors: | Nobrega, Lucia Helena Pereira1 Lima, Gislaine Piccolo de1 Martins, Gislaine Iastiaque1 Meneghetti, Adriana Maria1 |
| Institutions: | 1Universidade Estadual do Oeste do Parana, Centro de Ciencias Exatas e Tecnologicas, Cascavel, Parana. Brasil |
| Year: | 2009 |
| Season: | Jul-Sep |
| Volumen: | 31 |
| Number: | 3 |
| Pages: | 461-465 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English abstract | In order to be efficient, the crop rotation system requires, among other factors, an adequate choice of species to be installed. Vegetal cultures can feature allelochemical compounds, released by root hairs, roots, stems and leaves in variable amounts, which are able to interfere on subsequent cultures, as well as cause a delay in their production. Thus, this study analyzed the allelopathic potential of black oat (Avena strigosa Schreb) (BO), forage turnip (Raphanus sativus L.) (FT), vetch (Vicia sativa L.) (V), ryegrass (Lolium multiflorum Lam.) (RG) and consortium (CO - BO+V+FT) on soybean seed germination and plantlet growth. This trial was carried out in a laboratory, with sand substrate, where coverage plants were grown, during 30 days. The remaining root portions of plants were kept with and without the remaining aerial part portions. A reduction was observed on the emergence of soybean plantlets under CO, RG and BO. The emergence speed index (ESI), emergence percentage on sand (ES) and the green mass of hypocotyls (GMH) were negatively affected by coverage plants, and due to this, another study is essential to verify whether there is an indication of the allelopathic effect |
| Portuguese abstract | A eficiência do sistema de rotação de cultura requer, entre outros tratamentos, a escolha adequada das espécies a serem instaladas. Culturas vegetais podem apresentar compostos aleloquímicos, os quais são liberados por meio de pelos radiculares, sementes, raízes, colmos e folhas, em quantidades variáveis, capazes de interferir nas culturas subsequentes, comprometendo a produção. Assim, este estudo analisou o potencial alelopático de aveia-preta (Avena strigosa Schreb) (AP), nabo forrageiro (Raphanus sativus L.) (NF), ervilhaca (Vicia sativa L.) (ER), azevém (Lolium multiflorum Lam.) (AZ) e consórcio (CO - AP+ER+NF) na germinação de sementes e crescimento de plântulas de soja. O experimento foi em laboratório, com substrato de areia, onde foram cultivadas plantas de cobertura, por 30 dias, mantendo os restos radiculares das plantas com e sem restos de parte aérea. Observou-se redução na emergência de plântulas de soja sob CO, AZ e AP. O índice de velocidade de emergência (IVE), a porcentagem de emergência em areia (EA) e a massa fresca de hipocótilo (MFH) foram afetados negativamente pelas plantas de cobertura |
| Disciplines: | Agrociencias |
| Keyword: | Fitotecnia, Leguminosas, Soya, Germinación, Rotación de cultivos, Cobertura vegetal, Glycine max |
| Keyword: | Agricultural sciences, Crop husbandry, Legumes, Soybean, Germination, Crop rotation, Plant cover, Glycine max |
| Full text: | Texto completo (Ver HTML) |
