Efecto de inductores de resistencia sobre la incidencia y severidad de moniliasis, escoba de bruja en la productividad del cacao
The objective of this research was to evaluate the effect of resistance inducers on the incidence and severity of frosty pod rot (Moniliophthora roreri “Cif & Par”) and witches’ broom (Moniliophthora perniciosa “Sthael”) on the productivity of cacao (Theobroma cacao L.). The study was carried ou...
Αποθηκεύτηκε σε:
| Κύριος συγγραφέας: | |
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| Άλλοι συγγραφείς: | |
| Μορφή: | bachelorThesis |
| Γλώσσα: | spa |
| Έκδοση: |
2025
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| Θέματα: | |
| Διαθέσιμο Online: | http://repositorio.espam.edu.ec/handle/42000/2798 |
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Προσθήκη ετικέτας | Περίληψη: | The objective of this research was to evaluate the effect of resistance inducers on the incidence and severity of frosty pod rot (Moniliophthora roreri “Cif & Par”) and witches’ broom (Moniliophthora perniciosa “Sthael”) on the productivity of cacao (Theobroma cacao L.). The study was carried out at the Garrapatilla site, Ricaurte parish, Chone canton, Manabí province. Five treatments were applied: inducer A (potassium phosphite), inducer B (calcium phosphite), inducer C (acetylsalicylic acid), inducer D (salicylic acid), and an absolute control, using a standard dose of 2 liters per hectare. A completely randomized block design (CRBD) was used with five treatments, four replications, and 20 experimental units. Phytosanitary and productive variables evaluated included the number of healthy fruits, diseased fruits, cherelles, vegetative brooms, incidence, severity, area under the disease progress curve, grain weight, and yield. The data were analyzed using analysis of variance (ANOVA) and mean comparison with Tukey’s test at a 5% significance level. The results showed that calcium phosphite reduced incidence by 94.64% and severity by 91%, followed by acetylsalicylic acid (93.88% and 90%), salicylic acid (92.04% and 86%), and potassium phosphite (91.85% and 82%). Additionally, up to 25.5 more healthy fruits were obtained, 16.25 fewer diseased fruits, increases in fresh grain weight of 21.0% and 14.8%, and improved per-plant production of 21.1% and 14.8% compared to the control. It was concluded that calcium phosphite, acetylsalicylic acid, and salicylic acid represent an effective and sustainable alternative for the phytosanitary and productive management of cacao cultivation, respectively. |
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