Concentration of pH in leaves of clones cultivars of Jocote (Spondias purpurea L.) in the Arboretum Alain Meyrat of the Universidad Nacional Agraria, Managua, Nicaragua

Abstract

This research aims to determine the concentration of pH in the leaflets of 17 clonal cultivars Spondias purpurea L., located in the Arboretum Alain Meyrat of the National Agrarian University. The methodology used was developed at various times, such as the collection of plant material, selection of 20 sheets of each clonal cultivar in good condition (healthy, green and full), weighing using a balance of the green mass of leaflets separating them rachis which were labeled with the name of each clonal cultivar. Regarding the determination of the concentration of H + ions (pH) proceeded to cut the leaflets and the rachis, standard fashion using 3g of each sample were macerated with same as a porcelain mortar until ground matter. Then determined qualitatively solubility of the leaflets, using solvents such as water (H₂0), benzene (C₆H₆), ethanol (CH₃-CH₂- 0H) and carbon tetrachloride (CCl₄), using 3ml of each solvent. A pH meter was used to determine the concentration of H + ions (pH) of the samples before and after the use of solvents. It was observed that the growing San Franciscano has a higher concentration of H + ions, thus increasing acidity, maintaining this behavior in all solvents used, like dry rachis; This result led to the conclusion that the presence of organic acids is high and therefore the species is phytochemically recommended for the preparation of infusions. Regarding dry leaflets, Cook cultivar had the highest acidity.