Efecto del plaguicida orgánico a base de saponina del lavado de quinua (chenopodium quinoa) sobre el crecimiento en orugas del maíz (zea mays)
The hard corn in Ecuador has a great importance since it is one of the few species that are cultivated by which is considered one of the most important agricultural products in the human consumption and for its agro-industrial use, the plagues on the corn cause damage about the 40 to 48% per cent in...
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| Médium: | bachelorThesis |
| Jazyk: | spa |
| Vydáno: |
2018
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| Témata: | |
| On-line přístup: | http://dspace.unach.edu.ec/handle/51000/4704 |
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Přidat tag | Shrnutí: | The hard corn in Ecuador has a great importance since it is one of the few species that are cultivated by which is considered one of the most important agricultural products in the human consumption and for its agro-industrial use, the plagues on the corn cause damage about the 40 to 48% per cent in general the corn is attacked by several plagues, among them “el barrenador de tallo”, “gusano elotero”, “Spodoptera frugiperda” which is the most common plague in the corn crops (Zea mays), the quinoa (Chenopodium quinoa Willd.) is recognized as an important source from which we can obtain a great amount of saponins of interest for it biologic properties like the plaguicide effect, insecticide, anti-inflammatory, anti-carcinogenic effect; the saponins are in the flowers, stems, fruits and grains, with more abundance in the shell, in this investigation we treat about its plaguicide effect, (T1CP, T2 (25%), T3 (50%), T4 (75%), T5SC) were evaluated. In this research, quality control analysis was carried out analysing parameters such as pH, refractive index, ° Brix, Ashes and Protein; phytochemical tests of the treatments for determine the properties that a saponins has, The methodoly was supported by an experimental design, with a populations of 72 caterpillars, which we study the survival of the plague for 4 days, applying on them a dose of (1mL- 1gr). To corroborate which treatment is the most effective and on what day there were more death with the plague, an analysis was realized with the % of mortality obtained in the experiment, applying a test of proportions which give as a result that in the day four exist a significative difference among the proportions of mortality of “caterpillars cogolleras” (Spodoptera frugiperda) at 95% of confidence, the most optimal treatment to counteract the plague that affects the corn crops is T3 (50%), T4 (75%) with 83% of mortality in both treatments and the T5SC with 75%. |
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