Buscar
Mostrando ítems 101-110 de 137
Alternativas para el control biológico de la maleza invasora, Hyparrhenia rufa: Hongos fitopatógenos y ganado caprino
(2012)
Hyparrhenia rufa commonly known as Jaragua grass is an aggressive weed that has invaded cropland in Puerto Rico. To reduce the possible use of herbicide, several strategies have been proposed for its control such as the ...
Uso de arvenses comunes de Puerto Rico como fuente de nutrición y herramienta de seguridad alimentaria
(2018)
La seguridad alimentaria es de gran preocupación a nivel mundial debido a problemas relacionados a la distribución de alimentos, la creciente población y los cambios climáticos. El consumo de plantas arvenses, que actualmente ...
Desarrollo de líneas de frijol (Phaseolus vulgaris L.) para Angola con mayores niveles de resistencia a las enfermedades
(2011)
The common bean (Phaseolus vulgaris L.) is one of the most important grain legumes in Angola and an important source of protein, fiber, minerals and vitamins. The damage caused by pests and diseases reduces the yield and ...
Citoquinina y Giberelinas incrementan el crecimiento de plantas jóvenes de Achachairú (Garcinia gardneriana)
(2014)
Achachairú (Garcinia gardneriana) is an exotic fruit tree of South American origin that is characterized by having a slow vegetative development. from seed, there is an average delay of 7 to 8 years before fruit production. ...
Dinámica poblacional, comportamiento y microorganismos asociados a Raoiella indica Hirst (Acari: Tenuipalpidae) en Cocos nucifera L. (Palmae)
(2011)
Raoiella indica Hirst (Acari: Tenuipalpidae) was first observed affecting Cocos nucifera in Puerto Rico and the island municipality of Culebra in 2006. The adaptation of this mite is quickly in the island because have ...
Bacterias antagonistas del nemátodo de quiste de la soya, Heterodera glycines, aisladas de un suelo en Puerto Rico
(2014)
Soy bean cyst nematode ( Heterodera glycines) was reported in Puerto Rico in 1999. This represents a threat to the cultivation of soybean Glycine max. Although the parasite is in one location, it is necessary to know if ...
Caracterización morfológica, patogénica y molecular de especies de colletrotrichum asociados al follaje del cultivo de ñame (Dioscorea SPP.)
(2015)
Anthracnose disease caused by Colletotrichum gloeosporioides, is the most destructive disease in yam (Dioscorea alata) cultivation worldwide. The objective of this research is to identify morphologic, pathogenic and ...
Herencia de la resistencia a papaya ringspot virus-w en cultivares tropicales de calabaza (Cucurbita Moschata)
(2010)
El Papaya ringspot virus, cepa de sandía (PRSV-W), es una de las enfermedades más limitantes en la producción de calabaza (Cucurbita moschata Duchesne). Se ha reportado que el cultivar ‘Nigerian Local’ (NL), proveniente ...
Detección e identificación de patógenos utilizando la reacción en cadena de la polimerasa (PCR) convencional y de alta fidelidad
(2012)
The sensitivity of standard PCR and high fidelity PCR was compared to identify Candidatus Liberibacter asiaticus, causal agent of “citrus greening”, Ralstonia solanacearum, causal agent of “bacterial wilt in tomato” and ...
The influence of environmental variables and an invasive freshwater bivalve on the Phytoplankton community of two tropical reservoirs
(2012)
Reservoirs of Puerto Rico are an important source of drinking water. The phytoplankton community is a large determinant of water quality, as some species are toxic. Thus, understanding the phytoplankton community structure ...