Effectiveness of roots in the cloning of genotypes of Coffea canephora Pierre, in Manglaralto, Santa Elena

Abstract

The experiment was carried out from July to October 2019 at the Manglaralto Support Center, at the Santa Elena Peninsula State University. This work assessed the efficacy of chemical, plant roots and the rhizogenic capacity of the plant, in the cloning of robust coffee. The treatments were, alpha-naphthalenacetic acid, acetylsalicylic acid, Aloe vera and an absolute control. The statistical design used was completely random; 85 days after sowing, the evaluations of the variables were carried out 1) Percentage of survival; 2) mortality rate; 3) percentage of rooting; 4) percentage of callus presence; 5) percentage of cuttings that presented two shoots; 6) percentages of cuttings that presented 1 outbreak; 7) shoot height (cm); 8) root length (cm); 9) root dry weight (g) and 10) root fresh weight (g). The data were subjected to an analysis of variance with the Tuckey test (P≤0.5). Environmental conditions, genetic factors, and physiological status directly influence the rooting process; 55% of rooting of the absolute control is attributed to the rhizogenic capacity of coffee, however, rooting promoters influence the variables weight, root length and shoot height.