Vegetative propagation of red mombin (Spondias purpurea) with immersion in indole-3-acetic acid

Abstract

The objective of this work was to evaluate the effect of different concentrations of indole-3-acetic acid (IAA) applications, in three immersion times on the vegetative propagation of red mombin (Spondias purpurea), using the cutting technique. The experimental design was the completely randomized, with three replicates, in a factorial scheme (3 x 6), three different immersion periods (8, 16 and 24 seconds), in six concentrations (0, 2, 4, 6, 8 and 10 g L-1) of IAA, with ten cuttings per plot. The experimental period was 180 days and the characteristics percentage of cuttings survival, percentage of rooted cuttings, number of young shoots, number of roots per cuttings, general root length and total fresh mass. Data were submitted to analysis of variance by the F test and, later, fitted in regression equations. The vegetative propagation by red mombin cuttings was satisfactory to rooting and sprouting in the cuttings, with greater increases between the IAA concentrations of 6 to 10 g L-1. The 10 g L-1 concentration, in 24 seconds of immersion time, was the one that induced greater increases in the red mombin variables.