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1.
Pest Manag Sci ; 79(11): 4414-4422, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37401546

ABSTRACT

BACKGROUND: The seedling stage is the most vulnerable period of growth and development for annual weeds and an important target for weed management operations. To address this, several weed emergence models have been developed, but none are commercially available. Therefore, this study aims to develop a web application that implements predictive weed emergence models for eight different weed species, utilizing weather data sourced from public weather stations. RESULTS: Lolium rigidum Gaudin presented a mean root mean squared error (RMSE) value of 8.9, achieving an RMSE value below 15 (success rate) in 84.5% of cases. This result may be attributed to the use of a water potential base, set at -0.4 MPa, to evaluate water availability. Centaurea diluta Aiton achieved an RMSE value below 15 in all situations, with an average value of 9.0. This weed showed higher accuracy at southern sites than northern sites. Conversely, Avena sterilis ssp. ludoviciana (Durieu) Gillet & Magne achieved higher precision at northern sites where no dry periods occurred. The newly developed model for Bromus diandrus Roth. achieved an average RMSE value of 7.7 and a 100% success rate. Papaver rhoeas L. and the three Phalaris species exhibited lower accuracy in this study than in previous ones. Nonetheless, the success rates for Papaver rhoeas and Phalaris paradoxa L. were still above 70%. CONCLUSION: Models for C. diluta, B. diandrus, L. rigidum, Papaver rhoeas and Phalaris paradoxa have demonstrated potential for adoption in commercial production, while Phalaris minor and Phalaris brachystachys models require refinement. © 2023 Society of Chemical Industry.

2.
An. venez. nutr ; 17(1): 18-24, 2004. tab
Article in Spanish | LILACS | ID: lil-422046

ABSTRACT

en este estudio se desarrolla el concepto de patrimonialización aplicando a la gastronomía como un valor destacado dentro de la herencia cultural de Venezuela. Para promover la identidad de los destinos turísticos, mediante la conformación de productos únicos, bajo la estructura de pequeñas y medianas empresas en un ambiente de sostenibilidad. Desde el punto de vista metodológico este estudio es de tipo exploratorio, dado los escasos antecedentes que se encontraron sobre el tema, constituyendo una indagación cualitativa, ya que da cuenta de los factores que incluyen de manera determinable en la integración de la gastronomía como parte del patrimonio cultural del país. Venezuela debe retornar su oportunidad como destino turístico capitalizando la experiencia acumulada, y aplicando fórmulas viables que consideren las dimensiones sociales y económicas del país, ajustadas a sus ventajas competitivas reales, tales como unidades de negocios las cuales se perfilen hacia la formación de redes de servicios y rutas gastronómicas, teniendo como referencia la estrategia de aplicación de la patrimonialización


Subject(s)
Cooking , Cooking and Eating Utensils , Cultural Factors , Travel , Nutritional Sciences , Venezuela
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