Revistas: Envíos recientes
Mostrando ítems 461-470 de 2096
-
A framework for selecting and designing policies to reduce marine plastic pollution in developing countries
(2020)The polluting of marine ecosystems with plastics is both a global and a local problem with potentially severe consequences for wildlife, economic activity, and human health. It is a problem that originates in countries ... -
Determinants of food insecurity among smallholder farmer households in Central America: recurrent versus extreme weather-driven events.
(2020)To ensure food security among rural communities under a changing climate, policymakers need information on the prevalence and determinants of food insecurity, the role of extreme weather events in exacerbating food insecurity, ... -
Optimal Siting, Sizing, and Enforcement of Marine Protected Areas
(2020)The design of protected areas, whether marine or terrestrial, rarely considers how people respond to the imposition of no-take sites with complete or incomplete enforcement. Consequently, these protected areas may fail to ... -
Turrialba Volumen 41, número 3
(IICA, San José (Costa Rica), 1991-07) -
Papaya ringspot virus and cucumber mosaic virus associated with a severe mosaic in melon
(Instituto Interamericano de Cooperación para la Agricultura (IICA), San José (Costa Rica), 1991-07)Los virus mancha anular de la papaya o "papaya ringspot virus" (PRSV)y mosaico del pepino o "cucumber mosaic virus" (CMV) fueron asociados con un mosaico severo en el caso de infecciones simples y mixtas en plantas de melón ... -
Caracterización del MStV asociado a una enfermedad de maíz en Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), San José (Costa Rica), 1991-07)El virus del listado del maíz (MStV) se identificó como el agente viral asociado a una enfermedad de maíz en Costa Rica. En tejido foliar infectado se observaron, por microscopía de luz, inclusiones citoplasmáticas en forma ... -
Características morfoanatómicas y productividad de fibra en Agave lecheguilla Torr., en Nuevo León, México
(Instituto Interamericano de Cooperación para la Agricultura (IICA), San José (Costa Rica), 1991-07)En este estudio se evalúan, cualitativa y cuantitativamente, las características morfoanatómicas, el desarrollo y la productividad de las fibras de Agave lecheguilla Torr., en diferentes localidades de Nuevo León, México, ... -
The positive association between natural vegetation, native coccinellids and functional diversity of aphidophagous coccinellid communities in alfalfa
(2021-01)1. A greater taxonomic and functional diversity of natural enemies in agroecosystems is frequently positively associated with more effective pest control, due to the complementarity of species or traits. But this diversity ... -
Good data are not enough: Understanding limited information use for climate risk and food security management in Guatemala.
(2020)Climate extremes are one of the main drivers of acute food insecurity. In Guatemala, acute food insecurity reaches alarming levels when the usual dry period during the bimodal rainy seasons is extended or starts earlier ... -
Discovering weather periods and crop properties favorable for coffee rust incidence from feature selection approaches
(2020)Coffee Leaf Rust (CLR) is a disease that leads to considerable losses in the worldwide coffee industry; as those that have been reported recently in Colombia and Central America. The early detection of favorable conditions ...
