Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region
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| Formato: | Online |
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Universidad Nacional, Costa Rica
2015
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| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7691 |
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AMBIENTALES76912019-08-23T21:17:45Z Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region Selección de clones superiores de dos conjuntos genéticos de Gmelina arborea en el Pacífico Sur de Costa Rica Ávila-Arias, Carlos Murillo-Cruz, Rafael Murillo-Gamboa, Olmán Gmelina arborea selección de clones volumen comercial de calidad Gmelina arborea clones selection trade-quality volume Gmelina arborea has become a very significant choice to guarantee the supply of raw material for the forest industry, mainly by its rapid rate of growth, high productivity, easy settlement, wide range of tolerance to conditions of site and excellent capacity of regrowth. This research was aimed to select clones that recorded superior performance on melina production for a site class I and other class III (Finca Puntarenas and Finca La Amapola, respectively), from two genetic groups (Northern area and Southern area). The selection criterion was based on the following variables: trade volume, quality and trade volume of quality, through the determination of profit or loss percentage rate on the performance of each clone compared to the population mean. For sites class I clones 11 and 22 of the Northern area and 17 and 12 from Southern area were selected to continue with breeding programs; in addition to the previous, clone 16 in the Northern area and 16, 13, 7, 23 and 21 in Southern area were selected for commercial reforestation projects. For sites class III clone 5 from the Northern area was identified to continue in the breeding programs; also clones 5, 16 and from Northern area and 17, 20, 19 and 21 of Southern area were identified for commercial reforestation projects. The remaining clones of both backgrounds should be removed from the production process and stored in germplasm banks for future objectives. Gmelina arborea se ha convertido en una opción muy significativa para garantizar el abastecimiento de materia prima para la industria forestal, principalmente por su rápida tasa de crecimiento, fácil establecimiento, alta productividad, amplio rango de tolerancia a condiciones de sitio y excelente capacidad de rebrote. La presente investigación tuvo como objetivo seleccionar los clones que registraron un desempeño superior para un sitio clase I y otro clase III para producción de melina (finca Puntarenas y finca La Amapola, respectivamente), provenientes de dos conjuntos genéticos (zona norte y zona sur). La selección se basó en las variables: volumen comercial, calidad y volumen comercial de calidad, mediante la determinación del porcentaje de ganancia o pérdida en el desempeño de cada clon comparado con la media poblacional. Para sitios clase I se seleccionaron los clones 11 y 22 de zona norte y 17 y 12 de zona sur para continuar con el mejoramiento genético; además de los anteriores, el clon 16 de zona norte y 16, 13, 7, 23 y 21 de zona sur, para proyectos de reforestación comercial. Para sitios clase III se identificó el clon 5 de zona norte para continuar en un programa de mejoramiento genético; además los clones 5, 16 y 1 de zona norte y 17, 20, 19 y 21 de zona sur para proyectos de reforestación comercial. Los restantes clones de ambas procedencias deberían eliminarse del proceso productivo y guardarse en bancos de germoplasma para objetivos futuros. Universidad Nacional, Costa Rica 2015-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Journal articles Artículo Artigo application/pdf text/html https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7691 10.15359/rca.49-1.2 Tropical Journal of Environmental Sciences; Vol. 49 No. 1 (2015): Enero-Junio; 17-35 Revista de Ciencias Ambientales; Vol. 49 Núm. 1 (2015): Enero-Junio; 17-35 Revista de Ciencias Ambientales; v. 49 n. 1 (2015): Enero-Junio; 17-35 2215-3896 1409-2158 spa https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7691/8277 https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7691/html Derechos de autor 2016 Revista de Ciencias Ambientales |
| institution |
Universidad Nacional de Costa Rica |
| collection |
Revista de Ciencias Ambientales |
| language |
spa |
| format |
Online |
| author |
Ávila-Arias, Carlos Murillo-Cruz, Rafael Murillo-Gamboa, Olmán |
| spellingShingle |
Ávila-Arias, Carlos Murillo-Cruz, Rafael Murillo-Gamboa, Olmán Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| author_facet |
Ávila-Arias, Carlos Murillo-Cruz, Rafael Murillo-Gamboa, Olmán |
| author_sort |
Ávila-Arias, Carlos |
| title |
Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| title_short |
Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| title_full |
Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| title_fullStr |
Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| title_full_unstemmed |
Selection of Superior Clones of Two Genetic Groups of Gmelina arborea in the Costa Rican Southern Pacific Region |
| title_sort |
selection of superior clones of two genetic groups of gmelina arborea in the costa rican southern pacific region |
| title_alt |
Selección de clones superiores de dos conjuntos genéticos de Gmelina arborea en el Pacífico Sur de Costa Rica |
| publisher |
Universidad Nacional, Costa Rica |
| publishDate |
2015 |
| url |
https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7691 |
| work_keys_str_mv |
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