Search
Now showing items 1-10 of 11
Fijación biológica de nitrógeno por Leguminosas Arbóreas para para sombra de café en Puerto Rico
(2007)
Sustainable production of shaded coffee brings multiple benefits, including the conservation and increase of soil fertility. The objective of this study was to evaluate the capacity of biological N2 fixation of 30 different ...
Características agronómicas y nutricionales de asociaciones de Gramíneas y Leguminosas tropicales
(2007)
Two experiments were conducted. The objective of the first was to compare voluntary intake and digestibility of dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) of guinea grass-clitoria mixed hay (GCH; ...
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 ...
Variation for Anthracnose (Colletotrichum sublineolum) resistance within the Sorghum [Sorghum bicolor (L.) Moench] germ plasm collection from the Kayes region of Mali, West Africa
(2007)
Anthracnose, caused by Colletotrichum sublineolum, is considered one of the most important diseases of sorghum. The pathogen is highly variable; therefore, additional sources of host plant resistance are needed for the ...
Plant-water relationships for several common bean genotypes (Phaseolus vulgaris L.) with and without drought stress conditions
(2007)
This research presents results related to plant-water relationships under drought and non-drought stress conditions for several common bean (Phaseolus vulgaris L.) genotypes, including the local and most-widely planted ...
Efecto del manejo de nitrógeno sobre características agronómicas, composición química y fermentativas de híbridos de maíz a diferentes edades de corte
(2007)
The dairy cattle industry in Puerto Rico lacks forages of high nutritive value. Maize silage is a high energy value crop and offers potential for use in the industry, but its low protein concentration is a major concern. ...
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 ...
Desarrollo de métodos para la transformación genética de frijol común a través de electroporación
(2007)
Common bean (Phaseolus vulgaris L.) is the most important legume crop for small farmers worldwide. Weeds, through competition, cause yield reductions in common bean. Through genetic engineering, herbicide resistant lines ...
Desarrollo de líneas de habichuelas (Phaseolus vulgaris L.) adaptadas a las condiciones ecológicas de Haití con resistencia a enfermedades e insectos
(2007)
La liberación de variedades de habichuela (Phaseolus vulgaris L.) con resistencia a enfermedades y plagas podría reducir pérdidas en rendimiento en Haití. Se utilizó selección asistida por marcadores moleculares y métodos ...
Organic matter and exchangeable aluminum interactions in solis cultivated with coffee (Coffee arabica)
(2007)
The use of shading trees to improve soil quality on coffee plantations has been studied.
A field experiment was established to evaluate the effect of shading densities of P.
carbonarium on chemical properties of an Alonso ...