“Efectos del paclobutrazol en el comportamiento agronómico del cultivo de arroz (Oryza sativa l.) en el campus “La María”, Mocache 2020.”
The research project was carried out at the “La María” Campus of the Quevedo State Technical University, which used two varieties of rice (Oryza sativa L.), under the application of a growth regulator (Crapal), with paclobutrazol at 25% as ai, this input being capable of inhibiting giberalins, hormo...
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| Formaat: | bachelorThesis |
| Taal: | spa |
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2020
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| Onderwerpen: | |
| Online toegang: | http://repositorio.uteq.edu.ec/handle/43000/5996 |
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Voeg label toe | Samenvatting: | The research project was carried out at the “La María” Campus of the Quevedo State Technical University, which used two varieties of rice (Oryza sativa L.), under the application of a growth regulator (Crapal), with paclobutrazol at 25% as ai, this input being capable of inhibiting giberalins, hormones responsible for growth. The objectives of the research were: to evaluate the effects of paclobutrazol on agronomic behavior, to know the effect on plant height when applying a gibberellic acid inhibitor, to study the effect of a gibberellic acid inhibitor (paclobutrazol) on the number of spikes, compare the fresh and dry weights of the total plant between the control treatment and the paclobutrazol treatment. 4 treatments were used, dividing into 2 treatments for factor A (varieties: Lira and Poderosa) and 2 for factor B (application: with and without regulator), which were arranged in a DCA with factorial arrangement, each treatment used 5 repetitions. The results of the variables evaluated showed highly significant differences (p <0.05) for plant height, being the most important variable in the investigation; obtaining for the Lira 184.40 cm and 164.00 cm for the treatments without and with paclobutrazol respectively, while the Poderosa with heights of 118.40 cm and 97.00 cm between the control treatment and the control respectively at 75dds. Regarding the number of tillers, number of spikes, fresh weight, plant dry weight and root length, no statistical differences were found between the treatments of factor B within each variety of factor A. It is concluded that the use of paclobutrazol has an influence in the growth of plants, thus reducing their size and avoiding lodging without directly affecting their performance, since it should be noted that no statistical differences were observed in the number of spikes. Keywords: Rice Varieties, Gibberellic Acid, Crapal, growth regulator, height. |
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