Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua
Proyecto de Graduación (Licenciatura en Ingeniería Forestal) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2017.
| Autor Principal: | Chaves-Vásquez, Maikol Alberto |
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| Formato: | Tesis |
| Idioma: | Español |
| Publicado: |
Instituto Tecnológico de Costa Rica
2018
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| Materias: | |
| Acceso en línea: |
https://hdl.handle.net/2238/9341 |
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RepoTEC9341 |
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RepoTEC93412022-04-09T03:05:35Z Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua Chaves-Vásquez, Maikol Alberto Genotipos Ramas Herencia Ingeniería forestal Clones Genética forestal Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Forestry Proyecto de Graduación (Licenciatura en Ingeniería Forestal) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2017. The first chapter presents the evaluation of two clonal teak trials in Guanacaste, Costa Rica, where the behavior of 49 genotypes at an age of 4 years was analyzed. Each clone was represented by 24 repetitions, randomly distributed in 6 blocks. Through the SELEGEN software, mean clonal heritability values of 0.80, 0.80 and 0.81 were obtained for the DBH, number of total branches and commercial volume, respectively. The genetic correlation between localities in the variable number of branches, DBH and commercial volume registered r = 0.91, 0.89 and 0.88, indicating a low genotype x environment for this clonal population in these two locations. If the best 10 genotypes are selected, it is estimated that a genetic gain in DBH of 14,05% will be obtained; that will allow to reduce the harvest turn in 2.5 years. While the genetic gain of commercial volume is estimated at 34.70%. The second chapter presents the results of two clonal trials planted at 1.5 m x 1.5 m and 3 m x 3 m in Siuna, RAAN, in Nicaragua. The total volume registered average heritability by origin (company) of 0.76 and 0.77 for the low and high density tests, respectively. The genotypes of Malaysia registered significant differences in total volume, with respect to all the Costa Rican clones. The third chapter presents the evaluation of seven clonal teak trials in Costa Rica and Nicaragua. The genetic correlation for the seven trials was r = 0.14, 0.16, 0.22, 0.27, 0.34, 0.39 and 0.42 for the number of branches, trunk quality, total volume, presence of thick branch, DBH, total height and phytosanitary status, respectively, 2018-02-06T17:04:52Z 2018-02-06T17:04:52Z 2017 licentiateThesis https://hdl.handle.net/2238/9341 spa Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Instituto Tecnológico de Costa Rica |
| institution |
Tecnológico de Costa Rica |
| collection |
Repositorio TEC |
| language |
Español |
| topic |
Genotipos Ramas Herencia Ingeniería forestal Clones Genética forestal Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Forestry |
| spellingShingle |
Genotipos Ramas Herencia Ingeniería forestal Clones Genética forestal Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Forestry Chaves-Vásquez, Maikol Alberto Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| description |
Proyecto de Graduación (Licenciatura en Ingeniería Forestal) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2017. |
| format |
Tesis |
| author |
Chaves-Vásquez, Maikol Alberto |
| author_sort |
Chaves-Vásquez, Maikol Alberto |
| title |
Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| title_short |
Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| title_full |
Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| title_fullStr |
Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| title_full_unstemmed |
Comportamiento de clones de teca (Tectona grandis Linn. F.) en Costa Rica y Nicaragua |
| title_sort |
comportamiento de clones de teca (tectona grandis linn. f.) en costa rica y nicaragua |
| publisher |
Instituto Tecnológico de Costa Rica |
| publishDate |
2018 |
| url |
https://hdl.handle.net/2238/9341 |
| _version_ |
1796140167381123072 |
| score |
12.2319145 |