Indução ao enraizamento adventício de espécies do gênero Baccharis submetidas ao tratamento com extratos de bulbos de Cyperus rotundus

Abstract

The present study aims to evaluate the effect of extracts and homeopathic preparations of Cyperus rotunduns on the rooting of cuttings of species of the genus Baccharis. For that, theoretical data were presented, besides the results obtained in field research. In creating a methodology for the production of seedlings of species of the genus Baccharis, it is possible to substitute the use of artificial chemical compounds, avoiding a dependence of farmers on inputs and encouraging the cultivation of seedlings, in order to reduce the practice of extractivism. In order to perform the experiments of the specimens of the genus Baccharis (B. trimera and B. articulata) were collected between seven and eight hours, on May 1st 2017, by cuttings from selected plants at the borders of 153 Road, exit to the city of Gaurama, next to Erechim, city in Rio Grande do Sul State. The aqueous extract of C. rotundus was made without laboratory of Biotechnology and Plant Breeding and Microscopy at UFFS, at Erechim Campus. Two experiments were carried out - Experiment 1 (staging using aqueous extract of Cyperus rotundus): an aqueous experiment, with extracts of thrips with B. trimera, B. articulata, measured on May 1st 2017, and as journal were held on October 6th 2017. Experiment 2 (Cyperus Rotundus Simplified Staking), both with three replicates per treatment and three replications each, with 63 stakes / replicates, totaling 315 experimental stakes. ANOVA), using the post-hoc test with 95% significance (p <0.05). Rooting was evaluated 40 days after parking and the respective parameters: percentage of rooted cuttings, number of roots per cutting, length of the three largest roots per stake, percentage of live cuttings, percentage of dead cuttings and dry mass of shoot and root. The results obtained show that: in relation to the number of rooted cuttings: the concentrations of the aqueous extract of tereza tested did not influence the rooting of the species B. trimera and B. articulata; significant results were observed only for B. trimera treated with the homeopathic extract, with the highest number of rooted cuttings observed with the preparation at 20CH; as regards the length of the three largest roots of the B. trimera and B. articulata cuttings: there was no significant difference between the treatments for B. trimera, and B. articulata submitted to immersion only in water presented better results when compared to However, there was no significant difference between the treatments with synthetic AIB and aqueous extract of undiluted tiger; as regards the length of the three major roots of the B. trimera and B. articulata cuttings: the treatment with homeopathic preparations 5CH reduced the average length of the three largest roots in relation to the other treatments; in 20 CH the B. articulata showed longer root length by cuttings, when compared to B. trimera .; the dry matter of root and dry mass of roots, the aqueous extract of 50% tiririca presented significant increase for B. articulata, when compared to the other treatments, but no significant result was observed for B. trimera.