Propagación vegetativa de aliso (Alnus acuminata H.B.K.) utilizando tres sustratos y tres enraizantes en la parroquia Cubijíes, cantón Riobamba, provincia de Chimborazo.

Abstract

This research has as its abjective the study of the vegetative propagation of alder (Alnus acuminata H.B.K.) using three substrates and three rooting agents in the Cubijíes parish. Riobamba canton, Chimborazo province. for this, a Randomized Complete Block (DBCA) has used with a bifactorial arrangement where Factor A of rooting agents consisting of water, honey, and naphthaleneacetic acid was analyzed, and Factor B of consistent substrates of 100% sand; 50% black earth, 25% sand and 25% peat; and 50% black earth and 50% peat. We worked with nine treatments resulting frontis the combinations of the different factors and to determine the best treatment, the variables of taking percentage, number of shoots per stake, stake height, root length, and root fresh weight were evaluated. Statistical tests have been used to determine the treatments that presented the greatest statistically significant difference. It has determined that the naphthaleneacetic acid presented better characteristics for the studied variables of taking, number of shoots, plant height, length, and fresh root weight, while the substrate 50% black earth and 50% peat, allowed a higher percentage of taking, plant height, root length, and fresh root weight. It has concluded that the best combination of factors was that of naphthaleneacetic acid with a 50% black earth and 50% peat substrate, and the use of diferent chemical rooting agents has been recommended according to the locality.