This paper aimed to evaluate the effect of leaf area reduction of apical and intermediate mini-cuttings
and different substrates (vermiculite and organic substrate) on the rooting of six half-sib
Anadenanthera macrocarpa
progenies from mini-stumps of seminal origin. The evaluations were carried out in the
greenhouse (30 days) and the shade house (40 days) for survival rate and roots percentage observed at the
bottom of the container. Survival rate and rooting percentage, height, stem diameter, number of roots, and
dry mass of shoot and roots of mini-cuttings were evaluated, in the full sunlight area, 70 days after staking.
The results showed that are not differences between progenies for type of mini-cuttings and substrate to
characteristics evaluated. The vermiculite substrate provided the best results for the survival rate, rooting percentage, height, stem diameter and weight of dry roots. In general terms, apical mini-cuttings up to 10 cm
in length and entire leaf had higher averages survival rate, rooting percentage, root number and dry weight
of shoot and root. Therefore, using vermiculite as substrate, apical mini-cuttings up to 10 cm in length
and entire leaf were more appropriate for vegetative propagation from seminal material of
Anadenanthera
macrocarpa by mini-cutting technique.
