Efecto del ácido abscísico (ABA) en la tuberización de la papa (Solanum tuberosum l.) variedad INIAP–Fripapa en el sistema aeropónico.

Abstract

The present investigation aims to evaluate the effect of Abscisic Acid (ABA) on the tuberization of potato Solanum tuberosum L. variety INIAP-Fripapa in the aeroponic system. A complete randomized design with three treatments T1 = dose of Abscisic acid 0.005%, T2 = dose of Abscisic acid 0.01% and T3 = dose of Abscisic acid 0.02% and three replications, in total nine experimental units, was carried out. Parameters as number of mini tubers per plant, weight of mini tubers per plant, days to harvest, yield Kg/ha, internal quality control (CIC), as well as greenhouse environmental indicators such as maximum and minimum temperatures and relative humidity were evaluated. The best results were obtained in treatment T2 (dose corresponding to 0.01% Abscisic acid), in which an increase in the following indicators was achieved: the highest number of tubers per plant with an average of 47 tubers, the highest weight of tubers per plant with an average of 165.46 grams, the yield of 26472.53 kg/ha compared to Treatment T1 (Dose corresponding to 0.02% Abscisic acid) with an average of 40.67 tubers per plant, the weight of tubers per plant with an average of 146, 82 grams and yield with an average of 23496.46 Kg/ha while the lowest yield corresponds to Treatment 3 (Dosage corresponding to 0.005% Abscisic acid) with an average of 31 tubers/plant, weight of tubers per plant with an average of 140.48 grams, yield with an average of 22480.89 Kg/ha and the Internal Quality Control (IQC) was determined. It is concluded that Abscisic acid has an influence on potato tuberization and a significant increase in yield. From the agronomic point of view, it is recommended to carry out further research on Abscisic acid in new potato varieties in the aeroponic system.