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Caracterización fenotipica de una colección de germoplasma de mamey sapote (Portería Sapota, [JACQ.] H.E. Moore & Stearn.) del USDA-ARS TARS
(2009)
Twenty-six accessions of mamey sapote (Pouteria sapota [Jacq.] H.E. Moore & Stearn) from the USDA-ARS TARS (Tropical Agricultural Research Station) collection growing at Isabela, Puerto Rico were evaluated for both ...
Response to phenotypic recurrent selection for resistance to Diaphania hyalinata (L.) (Lepidoptera: Pyralidae) in Tropical Pumpkin (Cucurbita moschata Duchesne)esponse to phenotypic recurrent selection for resistance to Diaphania hyalinata (L.) (Lepidoptera: Pyralidae) in Tropical Pumpkin (Cucurbita moschata Duchesne)
(2007)
In order to determine the effectiveness of phenotypic recurrent selection for resistance to melonworm, two cycles of selection were carried out on Cucurbita moschata ‘Taína Dorada’. Selection was based on results of a ...
Densidad y altura de corte y su efecto sobre el rendimiento y persistencia de Ubon Stylo (Stylosanthes guianesnsis var. vulgaris x var. pauciflora) en un oxisol de Puerto Rico
(2009)
Información sobre el comportamiento de Ubon Stylo (Stylosanthes guianensis; var. vulgaris x var. pauciflora), (95 por ciento de germinación) durante el período de establecimiento es limitante en Puerto Rico. Se evaluó los ...
Evaluación de leguminosas arbóreas para sombrar de café en un ullwtisol enmendado con cal y nutrientes
(2009)
Coffee in Puerto Rico is cultivated mainly on Ultisols. These soils are caracterized as having low fertility, acidity, high clay content and highly erodability. To improve the fertility and reduce the erosion of these ...
Determinación de los coeficientes genéticos en maíz para ser utilizados en el modelo CERES-Maize
(2007)
An investigation was conducted in the Agricultural Experimental Station at Lajas, Puerto Rico using crop models to determine maize physiological performance. The objective of this investigation is to determine the genetic ...
Fijación biológica de nitrógeno y almacenamiento de carbon en agrosistemas de producción de carbono en agrosistemas de producción de café (Coffea arábica L.) en Puerto Rico
(2009)
Coffee agroforestry systems have been promoted because they have smaller environmental impact than sun grown coffee. The majority of shade grown coffee systems use leguminous trees capable of fixing N2 from the atmosphere, ...
Promoting the use of tropical legumes as cover crops in Puerto Rico
(2009)
Degradation and misuse of agricultural land has made it necessary to identify solutions to address this serious problem. Cover crops have long been used in the tropics to increase soil and water conservation, especially ...
Composición botánica y química de asociaciones de Sorgo Forrajero y Leguminosas anuales
(2009)
The use of legumes and grass association represents a sustainable alternative for ruminant nutrition in the tropics. An experiment was conducted at the Isabela Sub-station of the Agricultural Experimental Station, Puerto ...
Response of the common bean (Phaseolus vulgaris L.) to Rhizobium inoculation and nitrogen fertilization
(2009)
Common bean (Phaseolus vulgaris L.) producers need to use bean lines with improved nitrogen (N) use efficiency to decrease production costs. The goal of this thesis was to identify bean lines adapted to soils with low N ...