TITLE:
Survival and Growth of Mangrove Tree Seedlings in Different Types of Substrate on the Ajuruteua Peninsula on the Amazon Coast of Brazil
AUTHORS:
Rejane Silva Costa, Erneida Coelho de Araujo, Elaine Cristina Lopes de Aguiar, Marcus Emanuel Barroncas Fernandes, Rogerio Figueiredo Daher
KEYWORDS:
Replanting, Soil, Production of Seedlings, Mangrove, Brazilian Amazon
JOURNAL NAME:
Open Access Library Journal,
Vol.3 No.7,
July
22,
2016
ABSTRACT: The present study investigated the growth and survival of seedlings of Rhizophora, Avicennia, and Laguncularia raised
in three different substrates: mangrove soil, latosol, and sand. The study was
based on an entirely random factorial design (3 × 3) × 3, with three tree
species, three substrates, and three replicates. The experiment was conducted
in a nursery installed in the municipality of Braganca, in the northern
Brazilian state of Pará. The seedlings were grown in 17 cm × 27 cm polyethylene
containers. Survival was calculated based on the percentage of germinated
propagules surviving after 270 days. Seedling heights were evaluated using an
analysis of variance (ANOVA) and morphological parameters were compared using
Tukey’s test. All three species were ready for replanting after 270 days. The R. mangle and A. germinans seedlings presented better rates of survival and
growth on the substrates tested. All three species grew well in the substrates
tested, and the production of seedlings in yellow latosol would appear to be
the most effective approach.