Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica

Quassia amara is a tropical shrub used as a medicinal plant or natural insecticide, and whose silviculture for diversified forest management is studied by CATIE. In Costa Rica the species is found below 450 m.a.s.l. in areas where soils maintain their humidity all year round. Populations are denser...

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Main Authors: Leigue, Lilibeth, Marmillod, Daniel, Villalobos Soto, Róger, Finegan, Bryan
Format: Ponencia
Language:Español
Published: CATIE 2015
Subjects:
Online Access:https://repositorio.catie.ac.cr/handle/11554/7040
id RepoCATIE7040
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spelling RepoCATIE70402021-12-22T20:26:35Z Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica Leigue, Lilibeth Marmillod, Daniel Villalobos Soto, Róger Finegan, Bryan QUASSIA AMARA FENOLOGIA SILVICULTURA TALAMANCA COSTA RICA Quassia amara is a tropical shrub used as a medicinal plant or natural insecticide, and whose silviculture for diversified forest management is studied by CATIE. In Costa Rica the species is found below 450 m.a.s.l. in areas where soils maintain their humidity all year round. Populations are denser in sunny areas, whereas in very rainy places, the shrub only grows at higher altitudes. During one year, growth, flower, fruit and seed production of Q. amara plants of a natural population in Talamanca, Costa Rica, were measured and related to topographic and light conditions. Shrubs produce flowers and fruits under all light conditions, but more intensively and during longer periods for shrubs with greater basal diameter (> 65 mm) and intermediate light exposure (20-80 percent of tree top receiving direct vertical light). Higher light exposure levels did not produce significant changes, but rather a tendency to decrease. Maximum averages were 1112 flowers and 135 fruits per shrub up until 180 phenological activity days. Topographic conditions had no effect on phenology but affected annual diametric increase; this was great for shrubs on mountain peaks or slope terraces. Diametric increase was greater for flowering shrubs under intermediate light exposure conditions or for non flowering shrubs with maximum light exposure (4.14 mm). Illumination control appears to be a fundamental factor for the species integration in diversified forest management. 2015-05-29T17:14:56Z 2015-05-29T17:14:56Z 1999 Ponencia https://repositorio.catie.ac.cr/handle/11554/7040 CATIE, Turrialba (Costa Rica) Turrialba (Costa Rica) es Semana Científica;4 application/pdf CATIE
institution Centro Agronómico Tropical de Investigación y Enseñanza
collection Repositorio CATIE
language Español
topic QUASSIA AMARA
FENOLOGIA
SILVICULTURA
TALAMANCA
COSTA RICA
spellingShingle QUASSIA AMARA
FENOLOGIA
SILVICULTURA
TALAMANCA
COSTA RICA
Leigue, Lilibeth
Marmillod, Daniel
Villalobos Soto, Róger
Finegan, Bryan
Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
description Quassia amara is a tropical shrub used as a medicinal plant or natural insecticide, and whose silviculture for diversified forest management is studied by CATIE. In Costa Rica the species is found below 450 m.a.s.l. in areas where soils maintain their humidity all year round. Populations are denser in sunny areas, whereas in very rainy places, the shrub only grows at higher altitudes. During one year, growth, flower, fruit and seed production of Q. amara plants of a natural population in Talamanca, Costa Rica, were measured and related to topographic and light conditions. Shrubs produce flowers and fruits under all light conditions, but more intensively and during longer periods for shrubs with greater basal diameter (> 65 mm) and intermediate light exposure (20-80 percent of tree top receiving direct vertical light). Higher light exposure levels did not produce significant changes, but rather a tendency to decrease. Maximum averages were 1112 flowers and 135 fruits per shrub up until 180 phenological activity days. Topographic conditions had no effect on phenology but affected annual diametric increase; this was great for shrubs on mountain peaks or slope terraces. Diametric increase was greater for flowering shrubs under intermediate light exposure conditions or for non flowering shrubs with maximum light exposure (4.14 mm). Illumination control appears to be a fundamental factor for the species integration in diversified forest management.
format Ponencia
author Leigue, Lilibeth
Marmillod, Daniel
Villalobos Soto, Róger
Finegan, Bryan
author_facet Leigue, Lilibeth
Marmillod, Daniel
Villalobos Soto, Róger
Finegan, Bryan
author_sort Leigue, Lilibeth
title Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
title_short Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
title_full Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
title_fullStr Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
title_full_unstemmed Elementos fenológicos para la silvicultura de Quassia amara en Talamanca, Costa Rica
title_sort elementos fenológicos para la silvicultura de quassia amara en talamanca, costa rica
publisher CATIE
publishDate 2015
url https://repositorio.catie.ac.cr/handle/11554/7040
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AT marmilloddaniel elementosfenologicosparalasilviculturadequassiaamaraentalamancacostarica
AT villalobossotoroger elementosfenologicosparalasilviculturadequassiaamaraentalamancacostarica
AT fineganbryan elementosfenologicosparalasilviculturadequassiaamaraentalamancacostarica
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