Jatropha is promoted as a pro-poor bioenergy plant, while basic information about its productivity, age of maximum production, and oil content are missing. This study aims to determine the seed yield (dry weight) for three INIAP elite jatropha accessions, and to evaluate the changes in physical and chemical seed traits at the different fruit ripening stage in a split-plot design. Maximum seed production occurred four years after planting for the accessions CP041 and CP052, while for accession CP054, it occurred after the first year. CP041 was the most productive, with a mean of 316.46 g tree−1 year−1 (±76.50) over the 8-year study period. No significant differences in oil content were found among accessions, fruit ripening stage, and their respective interactions. Seed moisture content decreased drastically as the fruit ripening stage increased, from 40.5% ± 1.0% at fruit ripening stage 1 (greenish-yellow) down to 13.8% ± 0.4% at fruit ripening stage 4 (black-brown). No significant differences in seed weight were found among accessions, but it decreased as maturation progressed. Yellow fruits (stage 2) were the heaviest (62.4 g ± 1.5 g) and the black-brown fruits the lightest (44.3 g ± 1.9 g). The oil content (%) increased with seed weight up to the point of 58.3 g, but then decreased for heavier seeds.
La producción científica en Ecuador ha seguido un patrón similar a la evolución de otros países latinoamericanos, existiendo escasa generación de documentos indexados; pero en los últimos años se ha incrementado. El INIAP ha plasmado los resultados de sus investigaciones en publicaciones técnicas, dípticos, guías, manuales, entre otros. Desde el año 2014 ha tenido un aumento sostenido en su producción científica, debido a nueva reglamentación de acreditación e incentivos a investigadores. El objetivo de la presente investigación fue realizar un análisis de la producción científica del INIAP durante el periodo 2014-2019. Los resultados mostraron un aumentó 3,1 veces durante el periodo analizado, superando el crecimiento latinoamericano en ese mismo tiempo. Se determinó que más del 54% de las publicaciones del INIAP tienen colaboración internacional y el 62% de publicaciones están indexadas en revistas con índice SJR. Estos resultados indican que INIAP ha incrementado su producción y calidad científica en investigación agropecuaria.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.