Descripción organoléptica y anatómica de la madera de cinco especies forestales mediante tinción, procedentes de la hacienda Atenas, parroquia Alluriquín, cantón Santo Domingo.

Abstract

The present research proposes: the organoleptic and anatomical description of five staining forest species belonging to the Atenas Farm, the Alluriquín Zone. Santo Domingo City. where fertile dendrological samples of each species were obtained. These ones were identified in the herbarium of the Higher Polytechnic School of Chimborazo corresponding to Freziera verrucosa, Nectandra reticulata, Guarea khuntiana, Ficus maxima and Ceiba insignis. For the study of the organoleptic characteristics, the cutting of tablets with measurements of 2 cm thick by 5 cm wide and 12 cm long was carried out, with the help of these tablets the odor. flavor, texture, grain, shine, veining. grain, and color were identified. For the anatomical characterization. 2 cm? wooden cubes (prisms) were obtained from the five samples to be investigated. The cubes were placed in the glass flasks, adding 359 ml of distilled water, then covered with aluminum foil and placed in the autoclave at 121 degrees centigrade and 1.1 atmospheres of pressure, subsequently cuts of 0.3 microns were made in the microtome. in the three planes: transverse. tangential and radial. The samples were placed in petri dishes duly labeled with distilled water to avoid dehydration, then they were stained in Safranin, Astrablue and a combination of both in proportions of 1: 1 for a period of 10, 20, 30 seconds, respectively. So. they were mounted on plates for microscope observation and thus to identify which dye was the best for each species. In the qualification of the dyes for the cross section, it was statistically verified that the best results were obtained with Safranina and Astrablue followed by the combination. The alternative hypothesis was accepted, the characteristics of the

wood of the five forest species were different in the study by means of staining