| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000339708 |
| ISSN: | 1679-9275 |
| Authors: | Marcondes, Maria Celeste1 Andreoli, Claudinei2 Miglioranza, Edison1 |
| Institutions: | 1Universidade Estadual de Londrina, Departamento de Agronomia, Londrina, Parana. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Soja, Londrina, Parana. Brasil |
| Year: | 2011 |
| Season: | Jul-Sep |
| Volumen: | 33 |
| Number: | 3 |
| Pages: | 539-544 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | The objective of this research was to determine the deterioration rate of BRS 208 and CD 104 wheat cultivar seeds, treated with fungicides, by applying the viability equation. Seeds were stored in conventional warehouses in Mauá da Serra and Londrina, in the State of Paraná, Brazil. Four seed lots were divided into four replications, half being treated with Carboxin + Thiran and the other half taken as controls, without treatment, and these were stored for 300 days. The germination data were transformed into probit, and a straight line was adjusted between 0 and 30 days. The treated seed lot of cv. BRS 208 stored in Londrina gave seed deterioration rates varying from 0.8.10-3 to 1.3.10-3, not differing from the values given for the similar lot stored in Mauá da Serra, of 0.9.10-3. The deterioration rates of the treated seed of cv. CD 104 were 1.2.10-3 in Mauá da Serra and 2.0.10-3 in Londrina, which are greater than those values given for untreated seeds of 0.4.10-3 and 0.5.10-3. This model provides an effective approach to predict the untreated and treated seed longevity of wheat for the purpose of managing seeds |
| Portuguese abstract | O objetivo deste trabalho foi aplicar a equação de viabilidade para determinar a taxa de deterioração e a longevidade das sementes de trigo, tratada com fungicida, das cultivares BRS 208 e CD 104, em armazenamento convencional, em Mauá da Serra e Londrina, PR. Quatro lotes de sementes foram divididos em quatro partes, sendo a metade tratada com fungicida Carboxim + Thiram, armazenados por 300 dias. Os dados de germinação foram transformados em probit e a declividade da reta foi calculada entre zero e 30 dias. Os lotes tratados, da cv BRS 208, armazenados em Londrina tiveram o coeficiente variando de 0,8.10-3 a 1,3.10-3, não diferenciando de Mauá da Serra, 0,9.10-3. A taxa de deterioração para a semente tratada da cv. CD 104 foi 1,2.10-3 em Mauá da Serra e 2,0.10-3 em Londrina, foi superior a 0,4.10-3 e 0,5.10-3 para sementes não-tratadas. O modelo prediz com acurácia a longevidade das sementes de trigo tratadas e não-tratadas |
| Disciplines: | Agrociencias |
| Keyword: | Fitopatología, Gramíneas, Trigo, Triticum aestivum, Semillas, Fungicidas, Almacenamiento, Modelos matemáticos, Viabilidad, Longevidad |
| Keyword: | Agricultural sciences, Gramineae, Phytopathology, Wheat, Triticum aestivum, Fungicides, Storage, Mathematical models, Viability, Longevity |
| Full text: | Texto completo (Ver HTML) |
