Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest

Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest

The knowledge of the defoliation-refoliation process in rubber cultivation allows the development of management strategies in the production system to improve rubber yield. The objective of this study was to determine the intensity and duration of defoliation-refoliation of rubber clones FX 3864, IAN 710 and IAN 873 in the municipality of Tarazá and the FX 3864 and IAN 873 clones in the municipality of Nechí (northwestern Colombia). From October 2015 to June 2016, the measurements of the necromass were carried out in each location for each clone. The light environment was quantified, employing the hemispheric photographs technique to estimate canopy openness percentage (CO) and leaf area index. The assessed weeks were grouped by Principal Component Analysis (PCA) based on the original phenology and climatic variables. The defoliation-refoliation process was analyzed descriptively using graphical representations of the trend for the phenological variables that best described this process. The relationship between climatic and phenological variables in the period evaluated was evidenced; the rainfall was the most critical climatic characteristic in the induction of the defoliation process. The leaf area index was reduced to a minimum value in February, with values of 0.52 for IAN 710 clone in Tarazá, and 0.64 for the IAN 873 clone in Nechí, which corresponded to the highest defoliation stage in both locations. The refoliation period was short (4 to 6 weeks) and occurred during the dry season for all the clones in both places.

Saved in:
Bibliographic Details
Main Authors: Guerra-Hincapié, Juan José, Córdoba-Gaona, Óscar de Jesús, Gil-Restrepo, Juan Pablo, Monsalve-García, Danilo Augusto, Hernández-Arredondo, Juan David, Martínez-Bustamante, Enrique Guillermo
Format: Digital revista
Language:spa
eng
Published: Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias 2020
Online Access:https://revistas.unal.edu.co/index.php/refame/article/view/80546
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:www.revistas.unal.edu.co:article-80546
record_format ojs
institution UNAL
collection OJS
country Colombia
countrycode CO
component Revista
access En linea
databasecode rev-refame-co
tag revista
region America del Sur
libraryname Sistema Nacional de Bibliotecas de la UNAL
language spa
eng
format Digital
author Guerra-Hincapié, Juan José
Córdoba-Gaona, Óscar de Jesús
Gil-Restrepo, Juan Pablo
Monsalve-García, Danilo Augusto
Hernández-Arredondo, Juan David
Martínez-Bustamante, Enrique Guillermo
spellingShingle Guerra-Hincapié, Juan José
Córdoba-Gaona, Óscar de Jesús
Gil-Restrepo, Juan Pablo
Monsalve-García, Danilo Augusto
Hernández-Arredondo, Juan David
Martínez-Bustamante, Enrique Guillermo
Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
author_facet Guerra-Hincapié, Juan José
Córdoba-Gaona, Óscar de Jesús
Gil-Restrepo, Juan Pablo
Monsalve-García, Danilo Augusto
Hernández-Arredondo, Juan David
Martínez-Bustamante, Enrique Guillermo
author_sort Guerra-Hincapié, Juan José
title Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
title_short Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
title_full Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
title_fullStr Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
title_full_unstemmed Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest
title_sort phenological patterns of defoliation and refoliation processes of rubber tree clones in the colombian northwest
description The knowledge of the defoliation-refoliation process in rubber cultivation allows the development of management strategies in the production system to improve rubber yield. The objective of this study was to determine the intensity and duration of defoliation-refoliation of rubber clones FX 3864, IAN 710 and IAN 873 in the municipality of Tarazá and the FX 3864 and IAN 873 clones in the municipality of Nechí (northwestern Colombia). From October 2015 to June 2016, the measurements of the necromass were carried out in each location for each clone. The light environment was quantified, employing the hemispheric photographs technique to estimate canopy openness percentage (CO) and leaf area index. The assessed weeks were grouped by Principal Component Analysis (PCA) based on the original phenology and climatic variables. The defoliation-refoliation process was analyzed descriptively using graphical representations of the trend for the phenological variables that best described this process. The relationship between climatic and phenological variables in the period evaluated was evidenced; the rainfall was the most critical climatic characteristic in the induction of the defoliation process. The leaf area index was reduced to a minimum value in February, with values of 0.52 for IAN 710 clone in Tarazá, and 0.64 for the IAN 873 clone in Nechí, which corresponded to the highest defoliation stage in both locations. The refoliation period was short (4 to 6 weeks) and occurred during the dry season for all the clones in both places.
publisher Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias
publishDate 2020
url https://revistas.unal.edu.co/index.php/refame/article/view/80546
work_keys_str_mv AT guerrahincapiejuanjose phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT cordobagaonaoscardejesus phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT gilrestrepojuanpablo phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT monsalvegarciadaniloaugusto phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT hernandezarredondojuandavid phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT martinezbustamanteenriqueguillermo phenologicalpatternsofdefoliationandrefoliationprocessesofrubbertreeclonesinthecolombiannorthwest
AT guerrahincapiejuanjose patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
AT cordobagaonaoscardejesus patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
AT gilrestrepojuanpablo patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
AT monsalvegarciadaniloaugusto patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
AT hernandezarredondojuandavid patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
AT martinezbustamanteenriqueguillermo patronesfenologicosdelosprocesosdedefoliacionyrefoliacionenclonesdecauchoenelnoroestedecolombia
_version_ 1787235070363303936
spelling oai:www.revistas.unal.edu.co:article-805462020-11-06T01:20:54Z Phenological patterns of defoliation and refoliation processes of rubber tree clones in the Colombian northwest Patrones fenológicos de los procesos de defoliación y refoliación en clones de caucho en el noroeste de Colombia Guerra-Hincapié, Juan José Córdoba-Gaona, Óscar de Jesús Gil-Restrepo, Juan Pablo Monsalve-García, Danilo Augusto Hernández-Arredondo, Juan David Martínez-Bustamante, Enrique Guillermo Hevea brasiliensis Leaf area index Phenology Tropical species Hevea brasiliensis Índice de área foliar Fenología Especies tropicales The knowledge of the defoliation-refoliation process in rubber cultivation allows the development of management strategies in the production system to improve rubber yield. The objective of this study was to determine the intensity and duration of defoliation-refoliation of rubber clones FX 3864, IAN 710 and IAN 873 in the municipality of Tarazá and the FX 3864 and IAN 873 clones in the municipality of Nechí (northwestern Colombia). From October 2015 to June 2016, the measurements of the necromass were carried out in each location for each clone. The light environment was quantified, employing the hemispheric photographs technique to estimate canopy openness percentage (CO) and leaf area index. The assessed weeks were grouped by Principal Component Analysis (PCA) based on the original phenology and climatic variables. The defoliation-refoliation process was analyzed descriptively using graphical representations of the trend for the phenological variables that best described this process. The relationship between climatic and phenological variables in the period evaluated was evidenced; the rainfall was the most critical climatic characteristic in the induction of the defoliation process. The leaf area index was reduced to a minimum value in February, with values of 0.52 for IAN 710 clone in Tarazá, and 0.64 for the IAN 873 clone in Nechí, which corresponded to the highest defoliation stage in both locations. The refoliation period was short (4 to 6 weeks) and occurred during the dry season for all the clones in both places. El conocimiento del proceso de defoliación–refoliación en el cultivo del caucho permite desarrollar estrategias de manejo en el sistema productivo encaminadas a mejorar el rendimiento de caucho. El objetivo de este estudio fue determinar la intensidad y duración de la defoliación-refoliación de los clones de caucho FX 3864, IAN 710 e IAN 873 en el municipio de Tarazá y los clones FX 3864 e IAN 873 en Nechí, ubicados en el noroccidente de Colombia. Durante el período de defoliación-refoliación entre octubre de 2015 y junio de 2016, la recolección y cuantificación de necromasa se llevó a cabo en cada plantación y para cada clon. El ambiente lumínico se cuantificó empleando la técnica de fotografías hemisféricas para estimar el porcentaje de apertura del dosel (CO) y el índice de área foliar en el cultivo de caucho. Para agrupar las semanas de medición por los procesos fenológicos ocurridos, se realizó un Análisis de Componentes Principales (PCA) basado en las variables de fenología y de clima. La evolución del proceso de defoliación-refoliación se analizó descriptivamente mediante representaciones gráficas de tendencia para las variables fenológicas que mejor describieron este proceso. Se evidenció la relación entre las variables climáticas y fenológicas en el período evaluado, siendo la lluvia, la característica climática más crítica en la inducción del proceso de defoliación. El índice de área foliar se redujo a un valor mínimo en febrero, con valores de 0.52 para el clon IAN 710 en Tarazá, y 0.64 para el clon IAN 873 en Nechí, que correspondió a la etapa de defoliación más alta en ambos lugares. La duración del período de refoliación fue corta (4 a 6 semanas) y se produjo durante la estación seca para todos los clones en ambos lugares. Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias 2020-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion text/xml application/pdf https://revistas.unal.edu.co/index.php/refame/article/view/80546 10.15446/rfnam.v73n3.80546 Revista Facultad Nacional de Agronomía Medellín; Vol. 73 No. 3 (2020); 9293-9303 Revista Facultad Nacional de Agronomía Medellín; Vol. 73 Núm. 3 (2020); 9293-9303 Revista Facultad Nacional de Agronomía Medellín; v. 73 n. 3 (2020); 9293-9303 2248-7026 0304-2847 spa eng https://revistas.unal.edu.co/index.php/refame/article/view/80546/77000 https://revistas.unal.edu.co/index.php/refame/article/view/80546/76489 Copyright (c) 2020 Revista, Autores https://creativecommons.org/licenses/by-nc-sa/4.0

Similar Items