Uso de enraizadores sintéticos na propagação da jabuticabeira.

Abstract

The jabuticabeira is a plant native to the Atlantic Forest known for its nutrients. The use of vegetative propagation through cuttings is used to obtain seedlings with characteristics of the mother plant. This technique associated with synthetic rooters promotes greater success in plants that are difficult to root. Thus, this work aimed to analyze the effect of rooting agents naphthalene acetic acid and indolebutyric acid on the rooting of jabuticabeira cuttings. Stems were collected from the top of the jabuticabeira during the fruiting period. The experiment was conducted in the greenhouse of the Federal University of Campina Grande, Campus de Cuité – Paraíba. The experimental design used was completely randomized in which four treatments were distributed for three replications totaling 12 experimental plots. The successive distribution was designated: T1 - Control; T2 - ANA 0.4%; T3 - IBA + ANA 1%; T4 - IBA 2%. In the laboratory, 48 cuttings, measuring 20 cm, were prepared and exposed to rooters. The seedlings were planted in the greenhouse. The experiment lasted 120 days. Survival and rooting percentages were evaluated. It is concluded that vegetative propagation through cuttings of Plinia cauliflora did not have positive results with the use of synthetic rooters IBA and ANA and their respective concentrations. The synthetic rooters used did not provide root emission and young shoots in Plinia cauliflora. The IBA and ANA rooters at respective concentrations of 1%, 2% and 0.4% had no effect on the production of green phytomass.