Impacto del género Hypothenemus en semillas de Tectona grandis L. (TECA) en el litoral Ecuatoriano, año 2019
Tectona grandis is a species very recognized worldwide for its rapid growth and good quality wood that ensures a growing market nationally and externally. Teak, is a tree resistant to a large number of phytophages, however, native insects are adapting and make it susceptible to attack by these organ...
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2019
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| Subjects: | |
| Acceso en liña: | http://repositorio.uteq.edu.ec/handle/43000/6003 |
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Engadir etiqueta | Summary: | Tectona grandis is a species very recognized worldwide for its rapid growth and good quality wood that ensures a growing market nationally and externally. Teak, is a tree resistant to a large number of phytophages, however, native insects are adapting and make it susceptible to attack by these organisms that can seriously compromise their survival, representing a threat to forest products. The seeds of this forest species are of great economic and ecological importance for the establishment of plantations, ensuring a good response in sowing conditions and maximum yield. With the scarce information on the presence of the insect in teak plantations in Ecuador, it is complicated to know the affectations and problems that the species of the genus Hypothenemus can cause. The objective of this research is to quantify the damages of Hypothenemus spp., In seeds of T. grandis, so that through the field phase and with the help of the collection of teak seeds we try to identify the different species of Hypothenemus that are causing damage to the seed, this provides valuable information which may apply "some kind" of control benefiting teak wood producers and in future research. With the help of the morpho species recognition, 3 species of insects were differentiated in the teak seeds, however these were indicated as Hypothenemus sp1, Hypothenemus sp2 and a third unidentified insect, which were isolated from seeds that did not have any type of hole in the seed. The constant monitoring of the teak seed could determine the presence of drilling insects by altering the morphological process of the teak seedling, according to the number of perforations in the seeds, reducing the quality of the seed by up to 50%. Key words: resistant, susceptible, Hypothenemus, quantify, affectations, identify |
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