Indolebutyric acid and incision in Maytenus ilicifolia Mart. Ex. Reissek cuttings rooting/Ácido indolbutírico e incisão no enraizamento de estacas de Maytenus ilicifolia Mart. Ex. Reissek

Abstract

The “espinheira-santa” (Maytenus ilicifolia Mart. Ex. Reissek – Celastraceae) with great medicinal importance. The aim of the study was to test the effects of applying different concentrations of indolbutyric acid (IBA) and incisions at the base of the cuttings in rooting of espinheira-santa. The study was conducted (July to November) in the community of São Cristóvão in 2018. Semi-hardwood cuttings 10 cm long were made, with and without incision at the base. The mini-cuttings bases were immersed in alcoholic solutions (50% v/v) of different concentrations of IBA (0, 1000, 2000, 3000, mg L-1), for ten seconds and planted in tubes of 53 cm3 filled with vermiculite. The statistical design used was completely randomized, with four replications of 16 cuttings per plot, with a 4 x 2 factorial system (four concentrations of IBA and two types of cuttings, with and without incision), totaling 8 treatments. At 120 days after planting, variables were evaluated: percentage of rooted cuttings, livings, with sproutings, with calluses, dead ones, number and average length of roots formed per cutting (cm) and average number of sprouts. The species did not respond to the applied IBA concentrations, however the presence of incision contributes to the rooting of the cuttings