Influencia de tres niveles de fertilización sobre parámetros fisiológicos y reproductivos del cultivo de cacao (Theobroma cacao L.) clon EETP-801, sector El Padmi, Zamora Chinchipe
Ecuador is one of the main producers of cocoa; however, the yields are low and this is mainly associated with the lack of knowledge of proper fertilization practices for the crop. The objective of the present work was to evaluate the influence of three levels of fertilization on physiological and pr...
Furkejuvvon:
| Váldodahkki: | |
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| Materiálatiipa: | bachelorThesis |
| Giella: | spa |
| Almmustuhtton: |
2023
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| Fáttát: | |
| Liŋkkat: | https://dspace.unl.edu.ec/jspui/handle/123456789/26700 |
| Fáddágilkorat: |
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Lasit fáddágilkoriid | Čoahkkáigeassu: | Ecuador is one of the main producers of cocoa; however, the yields are low and this is mainly associated with the lack of knowledge of proper fertilization practices for the crop. The objective of the present work was to evaluate the influence of three levels of fertilization on physiological and productive parameters of cocoa crop clone EETP-801, which was developed in the experimental station “El Padmi” in the province of Zamora Chinchipe; and was established under a Complete Randomized Design, with three treatments (0 %, 100 %, 200 %) and four replications. The variables studied were trunk cross-sectional area, crown diameter, crop phenology, leaf area index, chlorophyll concentration, stomatal density, percentage of plants in the productive stage, soil pH and electrical conductivity. The effect of the treatments on the dependent variables was evaluated by ANOVA and Tukey’s test (0,05). Although no significant differences were found between treatments for most of the variables, it should be noted that plants under the 100 % fertilization treatment showed a better response in terms of leaf area index, chlorophyll concentration and stomatal density. The 200 % fertilization treatment showed significant differences in soli electrical conductivity 60 days after application of the treatments and it was also observed that the application of this dose of fertilization delayed change from the physiological stage to the productive stage of the crop. The results of this work suggest that the application of required fertilization doses (100 %) by the crop during the productive stage is important as it favors its development; however, it is necessary to continue this study to evaluate the influence on variables associated whit yield. Key words: Theobroma cacao L, fertilization, physiology, leaf area index. |
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