Germinación de semillas de Cordia alliodora (R. y P.) Oken (Laurel blanco) en sustratos convencionales y bajo condiciones in vitrio.
The Cordia alliodora better known as laurel, is one of the most used trees for both medicinal use and timber uses such as sculpture, parts of tools and woodworking in the country. One of the limitations for the reproduction of this species is the time it takes to germinate, develop and grow. In this...
Αποθηκεύτηκε σε:
| Κύριος συγγραφέας: | |
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| Μορφή: | bachelorThesis |
| Γλώσσα: | spa |
| Έκδοση: |
2020
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| Θέματα: | |
| Διαθέσιμο Online: | http://repositorio.uteq.edu.ec/handle/43000/5491 |
| Ετικέτες: |
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Προσθήκη ετικέτας | Περίληψη: | The Cordia alliodora better known as laurel, is one of the most used trees for both medicinal use and timber uses such as sculpture, parts of tools and woodworking in the country. One of the limitations for the reproduction of this species is the time it takes to germinate, develop and grow. In this way, this research arises with the main objective of determining the effect of different conventional substrates on the germination and development of white laurel seedlings. To check if it has influence on the plant. The variables they used were the germination percentage, where T3 (20.5%) and T4 (22%) showed a greater difference. The height of seedlings shows a greater difference in theT3 (sand + earth) and T4 (earth + black earth), with averages of (25.4 cm) and (25.86 cm). In the number of leaves, T3 (sand + earth) and T4 (earth + black earth) had a better positive response with averages of (8.8) and (9.4). The treatments that were evidenced with greater thickness were T3 (sand + earth) and T4 (earth + black earth) with superior averages of 6.18 and 7.02 in reference the others. In the foliar weight the T2 (sand + earth + peat) was statistically superior to the other treatments with an average of 7.54g. Within the secondary objectives we have in vitro propagation of laurel plants, this way you can accelerate plant growth by increasing the production rate. No results were obtained, for the reason that the culture medium (Murashige & Skoog) with the seeds was contaminated. A molecular identification was carried out, using the PCR technique to check the presence of drought-resistant ABA and ABS genes in laurel plants, in the treatments where these genes are presented were T4 (soil + black earth), T2 ( sand + earth + black earth) and in T1 (sand + black earth). Keywords: PCR, in vitro. |
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