Evaluación del efecto en las fases móviles de Tetranychus urticae y Eotetranychus lewisi en el rendimiento fotosintético en fresa (Fragaria vesca)

Abstract

The present research was developed at the technical university of Ambato Faculty of Agricultural Sciences Querochaca Experimental Farm with the purpose of evaluating the effect on the mobile phases of Tetranychus urticae and Eotetranychus lewisi on the photosynthetic performance in strawberry (fragaria vesca) with the purpose of determining the mobile phases that most affect photosynthetic performance and determine the chlorophyll and total nitrogen content according to the percentage of infestation. For the present investigation, a completely randomized experimental design with ten treatments and five repetitions was used. In addition, an ADEVA analysis of variance was carried out, subsequently the data were examined using the Tukey test at 5% of the treatments that showed significance. Obtaining positive results regarding the study variables in the case of the variables determination of total chlorophyll in leaves infested by mites and determination of total nitrogen in ug/ was the A2D4 species (Eotetranychus lewisi with a population density of forty mites per plant). Having as averages chlorophyll 39.38 SPAD and total nitrogen 12.36 ug/g. Followed by the variable amount of eggs laid and determination of the mite population that photosynthetically affects the crop, it was found that the A1D4 treatment (Tetranychus urticae with a population density of forty mites per plant) affected the crop in a more photosynthetic way.