English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/95034
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 3 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Prediction of annual weed seed emergence in garlic (Allium sativum L.) using soil thermal time

Autor Yousefi, A. R.; Oveisi, Mostafa; González-Andújar, José Luis
Palabras clave Weed emergence
Weed management
Gompertz function
Soil temperature
Thermal time
Polygonum aviculare L.
Avena fatua L.
Fecha de publicación 26-mar-2014
EditorElsevier
Citación Scientia Horticulturae 168: 189-192 (2014)
ResumenAvena fatua L. and Polygonum aviculare L. are two competitive weeds in garlic (Allium sativum L.) fields. Knowledge of the temporal pattern emergence will contribute to optimizing the timing of control measures, thus maximizing efficacy. The development of predictive models can contribute to control measures at early growth stages. The objective of this study was to develop and validate predictive empirical models of emergence for A. fatua and P. aviculare based on thermal time. Cumulative seedling emergence data were obtained during two years from a garlic field and used to develop and validate the models. The relationship between cumulative seedling emergences and cumulative thermal time (TT) under field conditions was analyzed using the Gompertz function. The models accounted for 98% and 96% of the variation observed in A. fatua and P. aviculare, respectively. Model validation performed well in predicting the seedling emergence of both species. According to this model, A. fatua emergence started at 381 TT after sowing and reached 50% and 90% of total emergence at 407 and 478 TT, respectively, with a soil base temperature of 1. °C. P. aviculare started emergence at 410 TT after sowing and reached 50% and 90% of total emergence at 505 and 590 TT, respectively, with a base temperature of 0. °C. Results indicate that these models could be useful as predictive tool contributing to a effective control of A. fatua and P. aviculare populations in garlic crops. © 2014 Elsevier B.V.
URI http://hdl.handle.net/10261/95034
DOI10.1016/j.scienta.2014.01.035
Identificadoresdoi: 10.1016/j.scienta.2014.01.035
issn: 0304-4238
Aparece en las colecciones: (IAS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.