Banca de QUALIFICAÇÃO: JOICY SILVA FARIAS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOICY SILVA FARIAS
DATA : 05/03/2024
HORA: 19:00
LOCAL: Online
TÍTULO:

Evaluation of the growth of Garcinia brasiliensis mart. in different
substrates and tolerance to flooding in the Mato Grosso Pantanal

PALAVRAS-CHAVES:

Germination efficiency; Dormancy;Ecological restoration;Plants; Wetlands

PÁGINAS: 50
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Aplicada
RESUMO:

Garcinia brasiliensis Mart. popularly known as bacupari, cupari and
others is a tree species belonging to the Clusiaceae family, characterized as a
tree five to seven meters high and 15 to 25 cm in diameter, can occur on the
Atlantic slope, Amazon region and are found in the Pantanal region. The aim of
this study was to evaluate the germination process of the species in different
substrates, the breaking of dormancy and its tolerance to a flooded environment
in the Pantanal. To check the best substrate for producing Garcinia brasiliensis
seedlings, 4 types of substrate were used, with each substrate having 4
repetitions containing 20 seeds, this stage was duplicated, one to evaluate the
effect of foliar fertilization every 15 days and for comparison the other without
foliar fertilization, the substrates used were: soil from the area of occurrence of
G. brasiliensis (Organosol). brasiliensis (Organosol), commercial substrate
(SC), black soil (TP) and black soil with 20% vermiculite (SCV). The experiment
was set up in a completely randomized design and evaluations were carried out
to determine germination percentage, speed and average germination time.
Another experiment analyzed seed dormancy. For this study, the germination
percentage (%G) and average germination time (AMT) of the seeds in seven
treatments were evaluated: Removal of the tegument (T1); Seeds stored in the
freezer for 5 days (T2); Seeds stored on a black tarpaulin for 5 days in full sun
(T3); Immersion of the seed in water for 48 hours (T4); Immersion of the seed in
water for 24 hours (T5); Immersion of the seed in sodium hypochlorite for 5
minutes (T6) and the control (T7). Treatments T1 and T6 gave the highest
values of (%G), 99% and 92% respectively, and obtained the lowest GMT, T1
(34.32 days) and T6 (97.9 days). Inefficiency occurred in treatment T2 with 0%
(%G) due to the intolerance of the recalcitrant seed to low temperatures. In
order to analyze the species' tolerance to different levels of flooding in the
Pantanal, the experiment was set up in two different areas: area 1 was wooded
with a low incidence of solar radiation and area 2 was free of trees and had a
high incidence of solar radiation. Each area was divided into plots, with area 1
containing five plots and area 2 four plots. 40 seedlings were transplanted into
each, and the seedlings were measured in both areas in terms of height and

diameter. When considering the results from the two areas, both had higher
survival rates at the higher levels of the terrain where they consequently spent
less time flooded. In area 1, plot two had the highest survival rate at 67.5% with
a maximum flood level of 2.47 m, at which point it remained flooded for 118
days. In area 2, plot one had a survival rate of 60% with a maximum flood level
of 0.95m and 35 days under water. Area 1 showed a shading percentage of
85% after analysis by the Canopeo application. These responses showed the
species' ability to survive in flooded and shaded conditions.

MEMBROS DA BANCA:
Interno - 118188003 - ERNANDES SOBREIRA OLIVEIRA JUNIOR
Interno - 48690002 - SOLANGE KIMIE IKEDA CASTRILLON
Externo à Instituição - FERNANDO FERREIRA DE MORAIS - UFPB
Externo à Instituição - JOSÉ RICARDO CASTRILLON FERNANDEZ - IFMT