Determinación de los requerimientos hídricos y nutricionales de cuatro variedades de fresa (Fragaria x ananassa Duch) en semihidroponía bajo cubierta.

Abstract

This present investigation aims to determine the water and nutritional requirements of four varieties of Fragaria x ananassa Duch (strawberry) in semi-hydroponics under cover. A 4x2 bifactorial randomized complete block design with four replications was used, factor A consisted of the strawberry varieties Monterrey, Albion, San Andreas and Cabrillo, factor B consisted of two semi-hydroponic construction systems of open channel and sleeve type, using as substrate a mixture of rice husk (50%), pine bark (35%) and coconut fiber (15%); data were taken from the treatments under study to determine the crop coefficients, The treatments under study were also analyzed to determine crop coefficients, as well as phenological stages and water requirements. the differences in plant height, days to flowering, requirements by fruit category, yield and water requirements, and the requirements by fruit category, total yield, soluble solids content, water potential, and stomatal aperture and stomatal aperture, these results were subjected to an analysis of variance and Tukey's test at 5% to determine if there were statistically significant differences between treatments; In addition, an economic analysis was carried out by means of a cost-benefit analysis. There were no significant differences between the crop coefficients of the varieties, the water requirements were higher than 5500 m3 of water per hectare.The San Andreas and Monterey varieties had greater plant heights, the Cabrillo and Albión varieties had higher total yields with values of around 65 Tn/Ha; The Albión variety in open channel achieved the best benefit/cost ratio of 1.49. It was concluded that there were significant differences in the total fruit yield of the Cabrillo and Albión varieties, it is recommended to evaluate the yield of the Albión variety during its entire crop cycle.