Evaluación de tres tipos de sustratos en la propagación sexual de aliso (Alnus acuminata) en el cantón el Tambo, provincia del Cañar.

Abstract

The aim of this research was the experimental study of three types of substrates in the sexual propagation of Alder (Alnus acuminata), defining which type of combination among the substrates used in the study is the most suitable and affects the germination and vegetative development of the plant, data was gotten at 20, 40 and 60 days, evaluatingthe percentage of budding, plant height, number of leaves, Analysis of Variance (ANOVA) was used for the analysis of variance, with separation of means according to Tukey at 0.05% through InfoStat software. In such a way to evaluate the percentage of yield and the development of the alder seedling, three types of substrates were used as main methodology in different percentages among which: we have black soil at 100%, sawdust at 40% plus black soil at 60% and finally sand at 60% plus black soil at 40%, that is why the experimental unit was based on the proper design of randomized blocks with a factorial structure of three treatments and three replications in which 10 sub samples were located. At the end of the research it was found that the most appropriate substrate for the propagation of the species Aliso (Alnus acuminata), was the treatment composed of black soil 40% and sand 60%, in which favorable results were obtained bothin germination with 99.5%, plant height with a 3. 51 cm, number of leaves with a 5.16Nº and with reference to the diameter at the height of the neck showed no significant differences between the treatments under study, it is suggested the propagation of the species Alder (Alnus acuminata) in recovery and soil management, agroforestry systems and repopulation of deforested areas.