Evaluación vía foliar de cinco dosis de calcio boro en cultivo semihidropónico para la deformidad en fruto de dos variedades de fresa (Fragaria x ananassa D.).

Abstract

This investigation aimed to evaluate the effect of five doses of calcium boron in a semihydroponic system on fruit deformity of two varieties of strawberry (Fragaria x ananassa D.) by foliar application. This trial was established in one of the greenhouses of the Experimental Irrigation Center CER-ESPOCH. The treatments evaluated were T1 (0cc/L; control), T2 (2.5cc/L; -50% of the commercial dose), T3 (5cc/L; commercial dose). T4 (7.5cc/L; +50% of the commercial dose) and T5 (10cc/L; double dose) by using a complete randomized design (CRD) with five treatments including the control and four repetitions, distributed in experimental units (EU), each with an area of 6. 5 m2. Five plants were chosen randomly to be evaluated for 14 weeks. The parameters evaluated were fruit deformity, fruit set, soluble solids, firmness, weekly yield, polar and equatorial diameter, fruit category. In addition, the economic analysis was determined using the benefit/cost ratio. The treatment that obtained the best result in the application of calcium boron doses was the application of T3 (5cc/L; commercial dose) which obtained a reduction in fruit deformity in San Andreas of up to 20.85%, which produced a weekly yield of 40.80 g/plant or 231.28 kg/ha and a profitability of 92%, while in the Cabrillo variety it produced a decrease in fruit deformity of up to 24.4%, with a weekly yield of 22.60 g/plant or 213.30 kg/ha and a profitability of 67%. It was concluded that the application of T3 (5cc/L; commercial dose) significantly reduced fruit deformity in the two strawberry varieties, improved the appearance and quality of fruit and increased the production, so it is recommended to apply this product which is mentioned in this study.