| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000455520 |
| ISSN: | 0103-9016 |
| Autores: | Oldoni, Henrique1 Costa, Bruno Ricardo Silva1 Bognola, Itamar Antônio2 Souza, Claudia Rita de3 Bassoi, Luís Henrique4 |
| Instituciones: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Ciencias Agronomicas, Botucatu, Sao Paulo. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Florestas, Colombo, Parana. Brasil 3Empresa de Pesquisa Agropecuaria de Minas Gerais, Nucleo de Inovacao Tecnologica Uva e Vinho, Caldas, Minas Gerais. Brasil 4Empresa Brasileira de Pesquisa Agropecuaria, Instrumentacao Agropecuaria, Sao Carlos, Sao Paulo. Brasil |
| Año: | 2021 |
| Volumen: | 78 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Characterization of the spatial variability of vegetative vigor in vineyards can help improve the performance of site-specific management practices, or the management of vineyards with different rates. Characterization using canopy proximal sensing has been a widely disseminated technique; however, vineyards in southeastern Brazil, where the utilization of annual double pruning results in a winter harvest, knowledge of the role of variability in improving vineyard management has not yet been applied. This study aimed to determine if post-veraison mapping of a normalized difference vegetation index could be used to assess the variability in grapevine vigor, water status, physiology, yield and berry quality attributes at harvest in an irrigated vineyard in southeastern Brazil. This normalized difference vegetation index was measured with an active canopy sensor, and spatial distribution maps over two growing seasons of a vineyard, managed on an annual double pruning basis, were generated. Attributes of physiological and technological berry maturation, leaf water potential, gas exchange, production, and fresh pruning weight were calculated. These normalized difference vegetation index maps allowed for the determination of variability in vegetative vigor and the productive potential of the vineyard; however, high levels of rainfall during the maturation period may reduce the potential of using these maps for determining berry parameters |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Plantas para uso industrial, Ecología, Fitotecnia, Viñedos, Vitis vinifera, Viticultura, Calidad, Uva, Variabilidad, Manejo agrícola, Brasil |
| Keyword: | Plants for industrial use, Ecology, Crop husbandry, Vineyards, Grape, Vitis vinifera, Quality, Variability, Agricultural management, Brazil |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
