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dc.contributor.advisorVargas-Ayala, Roberto
dc.contributor.authorRomán-Soto, Yaniel
dc.description.abstractThe purpose of this study was to evaluate different organic and chemical products for the control of the dry rot disease in yam (Dioscorea rotundata). Two experiments were performed at the Agricultural Experiment Substations at Corozal and Isabela of the University of Puerto Rico. The experimental design was a completely randomized blocks with seven (7) treatments and four (4) replications. In both field essays, the following treatments were evaluated; oxamil, NemaKill™, and Sesamin EC® , alone and in combinations with others. The Pratylenchus coffeae population levels in the yam bark were reduced with the applications for Sesamin EC® , however, non-significant statistical differences (α = 0.05) when compared with the control plots. In addition, the results demonstrated significant differences that the use of the Sesamin EC® and NemaKill™ was an effective treatment to reduce the severity and prevent yield loss under storage conditions. The use of this product, based on botanical extracts, in yam production would mean a reduction in the use of chemicals and therefore better preservation of the environment.
dc.description.abstractEl propósito de este estudio fue evaluar diferentes productos orgánicos y químicos para el control de la pudrición seca en ñame (Dioscorea rotundata). Se realizaron dos ensayos de campo en las Subestaciones Experimentales Agrícolas de Corozal e Isabela de la Universidad de Puerto Rico. El diseño experimental utilizado fue de bloques completos al azar con siete tratamientos y cuatro réplicas. En ambos ensayos de campo se evaluaron los siguientes tratamientos; oxamil, NemaKill™ y Sesamin EC® , solos y en combinación con otros. Las poblaciones de Pratylenchus coffeae en la corteza del ñame se redujo con las aplicaciones de Sesamin EC® . Sin embargo, el análisis estadístico reflejó que no hubo diferencias significativas (α= 0.05) en la corteza del ñame y en el suelo, al comparar con el testigo. Además, los análisis demostraron que el uso de Sesamin EC® y NemaKill™ redujeron significativamente la severidad de la pudrición seca del tubérculo en post-cosecha. El uso de ambos productos orgánicos Sesamin EC® y NemaKill™ le brinda una alternativa útil al agricultor en Puerto Rico.
dc.subjectNematodos en Puerto Ricoen_US
dc.titleControl de la pudrición seca en ñame (Dioscorea rotundata Poir) causado por nematodos en Puerto Ricoen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2015 Yaniel Román Soto.en_US
dc.contributor.committeeFeliciano, Merari
dc.contributor.committeeGonzález, Agenol
dc.contributor.committeeRóman Paoli, Elvin
dc.contributor.representativeGregory Crespo, Alexandra Protectionen_US
dc.contributor.collegeCollege of Agricultural Sciencesen_US
dc.contributor.departmentDepartment of Crops and Agro-Environmental Sciencesen_US

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