Initial growth and chlorophyll content in young plants of Bombacopsis glabra (Pasq.) A. Robyns with different substrates.

Abstract

The conservation and sustainable use of Cerrado areas also depends on basic knowledge
about the development and adaptation of the species occurring in this. Bombacopsis glabra
(Pasq.) Is a tree species of the Bombacaceae family, which has the potential to be used in
heterogeneous reforestations destined to the reconstitution of the recovery of degraded areas,
for attracting birds and other animals that feed on their seeds. The objective of this work is to
evaluate the effect of different substrates on height, stem diameter and chlorophyll index in
young plants of Chestnut-do-Maranhão under shading of 30%. The design was completely
randomized (DIC) with 6 treatments composed of 6 different concentrations of substrates, 4
replicates and 3 replicates. The substrates S1 and S5 presented higher mean height, the substrate
concentration S6 presented a larger mean diameter with 7.66 mm, differing statistically
from the substrate S2 with a mean diameter of 6.01 mm. The substrate S6 can be used for the
initial production of Bombacopsis glabra (Pasq.) Seedlings indicating a medium conducive to
the growth and development of seedlings in relation to the concentrations of substrates and the
shading to which they were inserted.