| Revista: | Acta scientiarum. Agronomy |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459893 |
| ISSN: | 1679-9275 |
| Autores: | Pasini, Mauricio Paulo Batistella1 Engel, Eduardo2 Lúcio, Alessandro Dal'Col3 Bortolotto, Rafael Pivotto1 |
| Instituciones: | 1Universidade de Cruz Alta, Laboratorio de Entomologia, Cruz Alta, Rio Grande do Sul. Brasil 2Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil 3Universidade Federal de Santa Maria, Departamento de Fitotecnia, Santa Maria, Rio Grande do Sul. Brasil |
| Año: | 2021 |
| Volumen: | 43 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Tibraca limbativentris is considered one of the main species of insect pests in irrigated rice. This species can be found in plants in the vegetative and reproductive stages. This study aimed to select semivariogram models to estimate rice stem bug population densities by ordinary kriging. Two fields were used to survey the T. limbativentris population in Oryza sativa. A grid of 30 x 30 m was drawn, which generated 143 and 385 sample units for the first and second fields, respectively. Seven evaluations of two hundred plants per sampling unit were performed during cultivation. From the insect counts, the results were input into circular, spherical, pentaspherical, exponential, Gaussian, rational quadratic, cardinal sine, K-Bessel, J-Bessel, and stable semivariogram models via ordinary kriging interpolation and the best model was selected via cross-validation. Each assessment had a particular spatial structure and semivariogram model that best fit the experimental data |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Insectos, Gramíneas, Fitopatología, Arroz, Oryza sativa, Tibraca limbativentris, Geoestadística, Variabilidad espacial |
| Keyword: | Insects, Gramineae, Phytopathology, Rice, Oryza sativa, Tibraca limbativentris, Geostatistics, Spatial variability |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
