Browsing Agronomía by Title
Now showing items 1028-1047 of 1455
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Nambí. Variedad de frijol resistente a la sequía terminal
(2016-12)Nambí es una variedad de grano negro comercial, arquitectura erecta y resistencia intermedia a los principales patógenos de importancia económica en Costa Rica. Sin embargo, su principal característica es la resistencia a ... -
Necesidades de investigaciones futuras
(Universidad de Costa Rica, 2000) -
New approaches to control postharvest rot in fruits
(2017)Postharvest fungal diseases are one of the main factors causing losses of fresh produce in the warm and humid tropical regions. Levels of postharvest losses are affected by type of commodity, country, weather condition, ... -
New records of Phaseolus microcarpus (Leguminosae: Phaseoleae) for Costa Rica
(2019)Evidence is presented about the presence of Phaseolus microcarpus in Costa Rica, while it was previously reported northwards in other Central American countries and Mexico. Fourteen populations are currently known, four ... -
Nitrógeno orgánico y químico en sorgo negro con cobertura de maní forrajero. I. Características nutritivas y de producción
(2005)Se realizó un estudio con sorgo forrajero (Sorghum almun) para evaluar la aplicación de 0, 150, 225 y 300 kg ha-1 de nitrógeno (N) proveniente de un fertilizante orgánico y de 300 kg ha-1 de Nutrán (nitrato de amonio ... -
Nivel de competitividad técnica de las empresas exportadoras de productos agrícolas no tradicionales de Costa Rica
(2018)Se realiza un análisis del concepto de competitividad, el cual se establece como un concepto complejo, multifactorial, que abarca factores propios del país que son responsabilidad del gobierno, aspectos externos a la ... -
¡No hay nada más tico que un tacaco!
(2014-10-08)Se comenta la excepcionalidad del tacaco, como una planta alimenticia que solamente existe en Costa Rica. -
Non-extractable polyphenols in tropical fruits: Occurrence and health-related properties
(Non-extractable polyphenols and carotenoids: Importance in human nutrition and health, 2018)Tropical fruits are good sources of phenolic compounds. Mango, pineapple, papaya and avocado are among the most commercialised tropical fruits worldwide. Tropical fruits with higher extractable polyphenol (EPP) contents ... -
Novedad: Presencia de cuatro y ocho suturas longitudinales completas en frutos de tacaco [Sechium tacaco (Pittier) C. Jeffrey]
(2022-01)Objetivo: determinar el número de suturas longitudinales completas del fruto de diversos genotipos de tacaco (Sechium tacaco). Materiales y métodos: entre los años 2016 a 2019, se recolectaron, identificaron y caracterizaron ... -
Nuevos frutales tropicales con potencial para América Central
(1993-12)Comentario sobre nuevas posibilidades de desarrollo de cultivos comerciales de varias frutas tropicales. -
Nutrient accumulation and export in teak (Tectona grandis L.f.) plantations of Central America
(2015)This study aims at assessing the nutrient sustainability of highly productive teak plantations in Central America by analyzing the nutrient accumulation dynamics at different ages and the allocation patterns throughout a ... -
Nutrient Management Improvements in Forestry Species
(2014)Proper soil management and forest nutrition are key to maintaining the productivity of planted or natural forests. This article reviews related concepts and developments for Central American forests and focuses on relevant ... -
Nutritional and industrial relevance of particular Neotropical pseudo-cereals
(2019-01-01)Several pseudo-cereals (plants not belonging to the Poaceae family but with uses similar to those of the traditional cereals) of Neotropical origin have been cultivated and consumed since pre-Columbian times by indigenous ... -
Nutritional relevance of papaya carotenoids considering carotenoid profiles, chromoplast morphology and ultrastructure
(V International Symposium on Papaya. Mérida, Yucatán, Mexico. 24-27 de octobre de 2017, 2019)Similarities among nutritionally relevant carotenoid profiles in red- and yellow-fleshed papaya (Carica papaya L.) cultivars were revealed using liquid chromatography coupled to mass spectrometry. Differences were observed ... -
Occurrence and characterisation of calcium oxalate crystals in stems and fruits of Hylocereus costaricensis and Selenicereus megalanthus (Cactaceae: Hylocereeae)
(2016-10)Detailed description about occurrence of calcium oxalate (CaOx) crystals in the edible vine cactus species Hylocereus costaricensis and Selenicereus megalanthus is scarce. Therefore, we evaluated and characterized the ... -
Occurrence of Banned and Currently Used Herbicides, in Groundwater of Northern Greece: A Human Health Risk Assessment Approach
(2022-07-09)The presence of pesticide residues in groundwater, many years after their phase out in European Union verifies that the persistence in aquifer is much higher than in other environmental compartments. Currently used and ... -
Occurrence of Potato Powdery Scab Caused by Spongospora subterranea f. sp. subterranea in Costa Rica
(2002-11)Powdery scab of potatoes, caused by Spongospora subterranea (Wallr.) Lagerheim f. sp. subterranea Tomlinson, is important worldwide due to its effect on tuber quality and transmission of Potato mop-top virus. Although ... -
Occurrence of Squash yellow mild mottle virus and Pepper golden mosaic virus in Potential New Hosts in Costa Rica
(2013-09)Leaf samples of Solanum lycopersicum, Capsicum annuum, Cucurbita moschata, Cucurbita pepo, Sechium edule and Erythrina spp. were collected. All samples were positive for begomoviruses using polymerase chain reaction and ... -
Oomycete Species Associated with Soybean Seedlings in North America—Part I: Identification and Pathogenicity Characterization
(2017)Oomycete pathogens are commonly associated with soybean root rot and have been estimated to reduce soybean yields in the United States by 1.5 million tons on an annual basis. Limited information exists regarding the frequency ...