Efecto de un fungicida sistemico aplicado a diferentes horas en una plantilla de banano para el control de sigatoka negra
The banana is the fourth most important crop after rice, wheat and maize, is cultivated in the tropical regions of more than 100 countries play a key role in the livelihood of many families in developing countries making it a main source economic conditions in countries that produce it as in Ecuador...
Αποθηκεύτηκε σε:
| Κύριος συγγραφέας: | |
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| Μορφή: | bachelorThesis |
| Έκδοση: |
2017
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| Θέματα: | |
| Διαθέσιμο Online: | http://repositorio.utmachala.edu.ec/handle/48000/11707 |
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Προσθήκη ετικέτας | Περίληψη: | The banana is the fourth most important crop after rice, wheat and maize, is cultivated in the tropical regions of more than 100 countries play a key role in the livelihood of many families in developing countries making it a main source economic conditions in countries that produce it as in Ecuador, among the diseases that reduce the yields of bananas, the disease of black Sigatoka disease is caused by the fungus hemibiotrófico Mycosphaerella fijiensis Morelet (Stover, 1980) I feel this the most damaging in the development of the fruit which this fungus attacks to the leaves by decreasing the area photosynthetic of the plant causing premature ripening of the fruit resulting in significant losses of Production up to 40% of the weight of the bunch, since such spots foliar black sigatoka requires frequent applications of systemic fungicides because it has a significant capacity of variation and adaptation, whose pathogenicity is continuous in time, space and pressure, causing significant economic losses that have a direct influence on the costs of production. In the current control of this disease is mainly based on the applications recurring fungicides protectors and systemic that apply throughout the year in banana plantations for export. This foliar disease represent the main obstacle for the production of bananas, many of the foliar applications has external factors that influence quite on the effectiveness of the control of the fungicide when their applications are performed in the morning hours or some other approaching half a day causing large variations in the coverage and control that can be measure using the notice biological and Stover , within the range of products for the control is systemic fungicides and contact in which the rotation of them is very important for its effectiveness, for this is to use a systemic fungicidal as is the Paladium with a dose of T1:0.4 liters. Ha-1 as a witness to the 17:00, whereas treatments will be applications on the same fungicide but at different times (T2: 07:00, T3: 09:00, T4: 11:00 and T5: 13:00 ) in a block design at random on the basis of factors of which the position of the sheet (center or tip) is another important factor in this study, in addition to establishing the effects of the influence of the temperature when applying a fungicide on the blade angle banana due to the solar rays at different times of the day using a linear regression analysis, all treatments there was no statistical significance nor in the position of the blade coming to the conclusion that the effect of the Fungicide to these doses resulted to be equal statistically as in position of the sheet , while in the regression analysis of influenced that there is a great influence on the time of day to apply the product it is therefore important to take into account this important factor during the applications of the fungicides to control the disease. |
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