Efecto de soluciones nutritivas en sistema semi hidropónico automatizado sobre la respuesta morfológica, fisiológica, rendimiento agrícola y calidad de Fragaria ananassa Duch. var Albión

Abstract

The objective of the present study was to determine the effect of nutrient solutions in an automated semi hydroponic system on the morphological, physiological, agricultural yield, and quality response of Fragaria ananassa Duch. var Albión in Tungurahua province, Tisaleo canton. A randomized complete block design (RCBD) with 4 treatments of different nutrient solutions was used: standard nutrient solution (T1), 25% reduced standard nutrient solution (T2), 12.5% increased standard nutrient solution (T3), and 25% increased standard nutrient solution (T4). The standard solution was based on the crop's requirements for each phenological stage, with the growth and development stage being the most representative at 29.03 ppm N, 4.23 ppm P, 23.79 ppm K, 14.38 ppm Ca, 4.07 ppm Mg, and 1.96 ppm S; and the fruiting stage at 19.38 ppm N, 3.28 ppm P, 22.57 ppm K, 6.44 ppm Ca, 3.18 ppm Mg, and 1.25 ppm S. Variables such as plant height, stolon number, leaflet number per plant, root length, leaf and root dry mass, fruit weight by category, average yield (g/plant), and soluble solids content were evaluated from transplanting to 176 DAT. The outstanding results showed significant differences (P<0.05) in the effect of the different nutrient solutions on root length, fruit weight by category, and soluble solids content. It was concluded that from the growth and development stage, the standard nutrient solution (T1) showed the best results, while for the physiological characteristics, the best results were obtained with the 12.5% increased standard nutrient solution (T3).