Establecimiento y conservación de accesiones nativas de tomate de árbol (Solanum betaceum Cav.) en la Quinta Experimental Docente la “Argelia” Loja, Ecuador.
The tree tomato (Solanum betaceum Cav.) is native from the Andean Region of Ecuador. This crop represents an economic opportunity at both: national and international levels. However, despite its importance, it is still considered as a marginalized species. In the Province of Loja there is very littl...
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| 格式: | bachelorThesis |
| 語言: | spa |
| 出版: |
2022
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| 主題: | |
| 在線閱讀: | https://dspace.unl.edu.ec/jspui/handle/123456789/24757 |
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添加標簽 | 總結: | The tree tomato (Solanum betaceum Cav.) is native from the Andean Region of Ecuador. This crop represents an economic opportunity at both: national and international levels. However, despite its importance, it is still considered as a marginalized species. In the Province of Loja there is very little information regarding the variability of tree tomatoes, which allows for the enhancement of this genetic material. The aim of this research project is to determine the morphological variability of tree tomato accessions (Solanum betaceum Cav.) in the Province of Loja, for conservation in the germplasm bank of the National University of Loja. A total of 14 accessions were located in 3 cantons (Loja, Saraguro and Celica), applying the morphological descriptor of tree tomato for trees, leaves, fruits, seeds and flowers given by “Biodiversity International”, a database was performed and a multivariate cluster analysis (dendrogram) was used for quantitative characters and correspondence analysis for qualitative characters. In addition, the germinative capacity of tree tomato actions were determined by analysis of variance (ANOVA) to determine the existence of significant differences and testing of multiple ranges of Tukey (95 %). The results obtained with respect to the variability of the species are shown in 5 clusters from which #2 and #3 presented the best morphological characteristics conformed by the accessions common red (SL), (S) and giant yellow (AG). This might indicate that these traits are of interest for germplasm differentiation of this species. In regards to correspondence analysis, a defined morphotype could not be identified. The application of gibberellic acid accelerated the germination rate of the seeds after 7 days, the lowest percentage of total emergency presented the common red action (b), the greatest growth of the seedlings until the transplant was obtained by the giant yellow action, with an average height of 9.62 cm. Key words: Solanum betaceum Cav, accessions, morphological variability, in situ conservation. |
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