Resumen La investigación educativa ha analizado posibles vínculos entre el uso de la tecnología y el rendimiento escolar desde la introducción de los ordenadores en las aulas. Este estudio presenta una revisión de la literatura, focalizando la manera en la que el uso y la introducción de la tecnología en las aulas han sido percibidos por la investi...
Stem rot and aggregated sheath spot are the two major stem and sheath diseases affecting rice (Oryza sativa L.) in temperate areas. A third fungal disease, sheath blight, is a major disease in tropical areas. Resistance to these diseases is a key objective in rice breeding programs but phenotyping is challenged by the confounding effects of phenolo...
Breeding cassava relies on a phenotypic recurrent selection that takes advantage of the vegetative propagation of this crop. Successive stages of selection (single row trial- SRT; preliminary yield trial – PYT; advanced yield trial – AYT; and uniform yield trials UYT), gradually reduce the number of genotypes as the plot size, number of replication...
Peer Review
La ingesta de proteína y micronutrientes en el Caribe seco colombiano en los últimos años ha sido motivo de preocupación pues cerca del 57 % de sus habitantes tiene déficit de aminoácidos, hierro (Fe) y zinc (Zn) en su dieta. Este artículo muestra los resultados de la evaluación multilocal agronómica de rendimiento y calidad de la semilla de nueve ...
Breeding cassava relies on several selection stages (single row trial-SRT; preliminary; advanced; and uniform yield trials—UYT). This study uses data from 14 years of evaluations. From more than 20,000 genotypes initially evaluated only 114 reached the last stage. The objective was to assess how the data at SRT could be used to predict the probabil...
Common bean (Phaseolus vulgaris L.) is the most important food legume in the diet of poor people in the tropics. This legume is cultivated by small farmers and is usually exposed to unfavorable conditions with minimum use of inputs. Drought and low soil fertility, especially phosphorus (P) and nitrogen (N) deficiencies, are major limitations to bea...
Peer Review
The yield gap has arisen again as a focus for agricultural research to ensure food security and economic growth for farmers around the world. To examine this renewed interest, we carried out a review of key literature in the field of yield gap analysis to identify important gaps in research and analysis. In so doing, both the complexities in yield ...
