Evaluación de tres bioestimulantes mediante endoterapia en Persea americana, en sector Las Viñas, parroquia Picaihua, provincia de Tungurahua

Abstract

Avocado (Persea americana) cultivation represents a key economic alternative in the inter-Andean region of Ecuador; however, its productivity in the Tungurahua province is limited by acidic andosol soils that fix essential micronutrients, reducing the efficacy of conventional fertilization. Faced with this problem, the present applied research with a quantitative approach aimed to evaluate the efficacy of three foliar biostimulants (Algeed Plus, Kelpak, and Turbo Mix) at different concentrations (5 and 10 ml/L) applied via plant endotherapy to optimize fruit sizing. The methodology employed a Randomized Complete Block Design with a factorial arrangement (3x2 + 1 control), with three replications, in the Las Viñas sector, Picaihua parish. The response variables evaluated at 25 and 50 days were fruit diameter and weight. The results demonstrated highly significant differences (p < 0.0001), highlighting the Algeed Plus treatment at 10 ml/L as the most effective, achieving an average weight of 502.0 g and a diameter of 8.04 cm, surpassing the control by 87.1% and 11.7%, respectively. As a scientific novelty, this study validates endotherapy as a superior nutritional administration pathway that avoids edaphic fixation, offering a technically and economically profitable proposal for small and medium-sized producers in the Ecuadorian sierra, ensuring sustainable agronomic management.