Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess

Abstract

Our study sought to evaluate the rooting capacity of indole butyric acid (IBA)-treated stem cuttings and the efficiency of the vegetative rescue technique of adult and transitional parent trees of Lecythis pisonis. Softwood, hardwood, and semi-hardwood leafless cuttings treated with IBA (0; 2,000; 4,000; 6,000; and 8,000 mg kg -1 ) were tested in a randomized block design with four replicates and 10 cuttings per plot. The growth of epicormic shoots was also evaluated in 60-cm branches removed from the tree canopy and kept in greenhouse for 60 days. Cuttings from adult trees did not form roots. Softwood cuttings from transitional trees had a very low rooting percentage. In both cases, no influence of IBA concentrations were observed. The use of the sectioned-branch technique was feasible for inducing sprouts.

Resgate e propagação vegetativa de Schizolobium parahyba var. amazonicum

“…Os propágulos juvenis são mais facilmente obtidos em plantas jovens e brotações epicórmicas basais. Entretanto, a coleta de propágulos de maior grau de maturidade (copa) não é sempre descartada, visto que essa escolha depende da dificuldade de obter brotações adventícias da espécie/árvore-matriz, bem como das situações em que a mesma seja protegida do corte raso (decepa) ou a finalidade seja a obtenção de flores, frutos e sementes (BERNARDES et al, 2020;.…”