Evaluación a los 9 años de edad, de propiedades de la madera y calidad del fuste en clones de Swietenia macrophylla King, Guápiles, Pococí, Costa Rica
Fecha
2022
Autores
Céspedes Arias, Diego Armando
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Nacional (Costa Rica)
Resumen
El objetivo de este estudio es estimar el crecimiento de ocho clones seleccionados de caoba a los 9 años de edad, en un ensayo clonal ubicado en "La Colonia", Pococí, Limón, Costa Rica. Se comparan estadísticamente las variables de crecimiento entre los clones. El ensayo, que abarca 2 hectáreas, pertenece al Instituto de Investigación y Servicios Forestales (INISEFOR) de la Universidad Nacional de Costa Rica (UNA) y fue establecido en diciembre de 2010. A lo largo de estos años, ha recibido prácticas silviculturales anuales, incluyendo limpieza y control de malezas, además de un control químico contra el barrenador Hypsipyla grandella en el primer año. Se seleccionan los clones con mejor desempeño en diámetro (mayor a 12 cm), altura y calidad del tronco. Cuatro clones provienen de Costa Rica y cuatro de Bolivia. Los datos de crecimiento y supervivencia son recogidos en noviembre de 2019. Para ello, se mide el diámetro a la altura del pecho (DAP) y la altura total de cada árbol, además de aplicar una metodología de evaluación de calidad. Se muestrean árboles vivos con un fuste de al menos 2,5 m desde la base, midiendo así la velocidad de ultrasonido y extrayendo muestras de madera mediante un método no destructivo. Estas muestras se analizan en laboratorio para determinar la densidad verde, el peso específico básico y el porcentaje de duramen de cada individuo.
The objective of this study is to estimate the growth of eight selected mahogany clones at 9 years of age in a clonal trial located in “La Colonia,” Pococí, Limón, Costa Rica. Growth variables between clones are statistically compared. The trial, covering 2 hectares, belongs to the Forestry Research and Services Institute (INISEFOR) of the National University of Costa Rica (UNA) and was established in December 2010. Over the years, it has received annual silvicultural practices, including cleaning and weed control, as well as chemical control against the Hypsipyla grandella borer in the first year. The clones with the best performance in diameter (greater than 12 cm), height, and trunk quality are selected. Four clones come from Costa Rica and four from Bolivia. Growth and survival data are collected in November 2019. To do this, the diameter at breast height (DBH) and total height of each tree are measured, and a quality assessment methodology is applied. Live trees with a trunk height of at least 2.5 m from the base are sampled, measuring the ultrasound velocity and extracting wood samples using a non-destructive method. These samples are analyzed in the laboratory to determine the green density, basic specific weight, and heartwood percentage of each individual
The objective of this study is to estimate the growth of eight selected mahogany clones at 9 years of age in a clonal trial located in “La Colonia,” Pococí, Limón, Costa Rica. Growth variables between clones are statistically compared. The trial, covering 2 hectares, belongs to the Forestry Research and Services Institute (INISEFOR) of the National University of Costa Rica (UNA) and was established in December 2010. Over the years, it has received annual silvicultural practices, including cleaning and weed control, as well as chemical control against the Hypsipyla grandella borer in the first year. The clones with the best performance in diameter (greater than 12 cm), height, and trunk quality are selected. Four clones come from Costa Rica and four from Bolivia. Growth and survival data are collected in November 2019. To do this, the diameter at breast height (DBH) and total height of each tree are measured, and a quality assessment methodology is applied. Live trees with a trunk height of at least 2.5 m from the base are sampled, measuring the ultrasound velocity and extracting wood samples using a non-destructive method. These samples are analyzed in the laboratory to determine the green density, basic specific weight, and heartwood percentage of each individual
Descripción
Licenciatura en Ingeniería en Ciencias Forestales con énfasis en Manejo Forestal y modalidad: artículo científico
Palabras clave
MADERA, WOOD, SILVICULTURA, FORESTRY, GENÉTICA FORESTAL, FOREST GENETICS, SWIETENIA MACROPHYLLA, PROPAGACIÓN VEGETATIVA, VEGETATIVE PROPAGATION, MANEJO FORESTAL, FOREST MANAGEMENT, POCOCÍ (LIMÓN)