Uso de fitorreguladores no enraizamento de diferentes tipos de estacas de malpighia emarginata D. C.

Abstract

Modern fruit-growing is based on the use of propagation methods, the employment of which makes it possible to cultivate numerous species of fruit trees in the most diverse climates and regions. The use of sex propagation is one of the main problems that the cultivation of acerola, a species of significant economic and nutritional importance, presents, reflecting the lack of homogeneity of the plants, compromising the production. In this sense, the objective of this work was to evaluate the propagation of different types of cuttings (herbaceous, semi-woody and woody) by means of the cutting method, by testing different inductors (Witness, AIB 3000ppm, 4000ppm, 6000ppm and Vitamin B1). The stakes were treated by immersing their bases in the inducers containing AIB until they were encased by the talc, already submerged in the aqueous solution of vitamin B1 for 24 hours. Then placed in tubes of 53 cm³, in substrate sand + straw of charred rice in the proportion 1: 1. The experiment was conducted with three replicates and eight cuttings per plot, kept in a greenhouse. At 75 days of rooting the survival rate, rooting and sprouting percentage, average length of the three largest roots, sprout number, total shoot and root dry mass were evaluated. AIB 3000ppm and 6000ppm inductors showed the best results.