Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.

Tesis (Licenciatura en Ingeniería en Agronomía). Instituto Tecnológico de Costa Rica. Escuela de Agronomía, 2019.

Autor Principal: Vargas-Núñez, Alfredo
Formato: Tesis
Idioma: Español
Publicado: Instituto Tecnológico de Costa Rica 2019
Materias:
Acceso en línea: https://hdl.handle.net/2238/10836
id RepoTEC10836
recordtype dspace
spelling RepoTEC108362022-04-09T03:05:29Z Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica. Vargas-Núñez, Alfredo Cultivos agrícolas Producción agrícola Tubérculos Agricultura Fisiología vegetal Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING Tesis (Licenciatura en Ingeniería en Agronomía). Instituto Tecnológico de Costa Rica. Escuela de Agronomía, 2019. The research objective was to determine the productive behavior of different planting materials in yam (Dioscorea alata) free of pests respect to conventional seed in Santa Clara, San Carlos, Costa Rica. The treatments evaluated were plants from yam cuttings, sections of rhizomes from conventional seed, second-generation rhizomes obtained from in vitro plants, yam vitroplants, conventional seed section from the lower or apical part of the rhizome and conventional seed fractions from the upper section or head of the rhizome. The sprouting percentage, pest infection rate and the yield quality were evaluated in the different yam planting materials. The results obtained showed that the survival percentage was low on plants from cuttings and yam vitroplants, until they reached the total death. On the other hand, significant differences were found in the sprouting percentage between the lower and upper seed sections over time, obtaining the best results in this last treatment (94%). It was also possible to diagnose different pathogens affecting the crop, but more leaf lesions were related to Colletotrichum gloeosporioides, evidencing a high disease susceptibility when lower seed section and second-generation rhizomes were used. Regarding the production, the highest values were obtained using upper yam seed section and second-generation rhizomes; however upper yam seed treatment showed the highest yield on export yam quality (19,19 tons/ha). 2019-09-26T15:59:30Z 2019-09-26T15:59:30Z 2019 licentiateThesis https://hdl.handle.net/2238/10836 spa application/pdf Instituto Tecnológico de Costa Rica
institution Tecnológico de Costa Rica
collection Repositorio TEC
language Español
topic Cultivos agrícolas
Producción agrícola
Tubérculos
Agricultura
Fisiología vegetal
Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
spellingShingle Cultivos agrícolas
Producción agrícola
Tubérculos
Agricultura
Fisiología vegetal
Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
Vargas-Núñez, Alfredo
Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
description Tesis (Licenciatura en Ingeniería en Agronomía). Instituto Tecnológico de Costa Rica. Escuela de Agronomía, 2019.
format Tesis
author Vargas-Núñez, Alfredo
author_sort Vargas-Núñez, Alfredo
title Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
title_short Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
title_full Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
title_fullStr Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
title_full_unstemmed Comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la Región Huetar Norte, Costa Rica.
title_sort comportamiento productivo de materiales de siembra de ñame (dioscorea alata) en la región huetar norte, costa rica.
publisher Instituto Tecnológico de Costa Rica
publishDate 2019
url https://hdl.handle.net/2238/10836
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score 12.140644