Comportamiento de vitroplantas de orquídeas en dos sustratos y aplicación de tres fertilizantes foliares
The orchids obtained in vitro present good germination and development in the laboratory, but they obtain high mortality placing them in substrates for their development in vivo, reason for which this research was carried out, considering of importance to provide the seedlings with a substrate and f...
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| Formaat: | bachelorThesis |
| Taal: | spa |
| Gepubliceerd in: |
2019
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| Onderwerpen: | |
| Online toegang: | http://dspace.unl.edu.ec/jspui/handle/123456789/21622 |
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Voeg label toe | Samenvatting: | The orchids obtained in vitro present good germination and development in the laboratory, but they obtain high mortality placing them in substrates for their development in vivo, reason for which this research was carried out, considering of importance to provide the seedlings with a substrate and fertilization according to their requirements. The present work was developed in the greenhouse of the Plant Micropropagation Laboratory, and the Botanical Garden "Reinaldo Espinosa" of the National University of Loja; with the purpose of testing two types of substrates and three foliar fertilizers to evaluate the development of vitroplants. In order to achieve acclimatization, the pre-adaptation was carried out first, placing the jars with the selected vitroplants in the place where the sowing was subsequently carried out, guaranteeing the necessary humidity and light conditions. For the sowing, two substrates were used: laboratory and Ecuagenera, and; three fertilizers: MORE, GREEN MASTER and synthetic hormones, applied every 8 days, the evaluated variables were: survival, height of the plant, length of leaves, length of roots, number of leaves and number of roots. The substrata of Ecuagenera presented better results in survival with 51.66%, and for the other variables the average increases in cm of: height 0.39, leaves 0.34, roots 1.16, and; the amount of 0.90 leaves and 1.15 roots. The MORE fertilizer showed better results in the variables evaluated with the following averages of increase in cm: height 0.55, leaves 0.44, roots 1.45, and number of roots 1.13; except for the number of leaves being surpassed by the one of phytohormones and the control. The substrate interaction of Ecuagenera + MORE obtained better results with the following averages of increase in cm: height 0.99, leaves 0.78, roots 2.61, and; number of roots 2, except for the number of leaves being exceeded by the interactions of: substrate Ecuagenera + control, with 1.27 and substrate Ecuagenera + synthetic fertilizer with 1.47. Keywords: Ecuagenera, vitroplants, in vitro, phytohormones, substrates, synthetics. |
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