Volumes de recipientes no crescimento de espécies florestais nativas
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Data
2011-12-05
Autores
Dias, Tânia Fontana
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Universidade Federal do Espírito Santo
Resumo
In order to provide information regarding the production of seedlings of forest species
of Atlantic Forest, important segment of forest restoration, the study evaluated the
growth of seedlings, Calophillum brasiliense (guanandi), Cariniana estrellensis
(jequitibá white), Peltophorum dubium (angico canjiquinha) e Schinus terebinthifolius
(red pepper tree) grown in containers of different dimensions. The study was
conducted in the nursery trade Agroforestry Atlantic (AMA), city of Teixeira de
Freitas, Bahia, located at 17 ° 31'08 "south latitude and 39 º 44'30" west longitude.
The statistical design was randomized blocks, with four replications and five
treatments composed of tubes volumetric capacity of 53, 115, 180 and 280 cm³ and
plastic bag of 560 cm³. Each species was an experiment independent of the others.
The influence of the volume of the vessel growth and quality of the seedlings was
determined by the following biometric parameters: shoot height, collar diameter,
shoot dry biomass, root and total leaf area, high levels of relations and diameter, dry
biomass and root and Quality of Dickson. To carry out the assessments were taken
at random 15 central plants in each plot. The non-destructive evaluations began 30
days after transplantation for recipients, and repeated monthly until the seedlings
showed morphological suitable for planting. During this time the experiment was
completed, performing destructive evaluations. The results were subjected to
analysis of variance SAEG statistical package (Statistical Analysis System), and the
treatment means compared by Tukey test at 5% probability. The volume of container
has significantly influenced the development of the plants for some species,
indicating that plant growth was limited by restricting the root system. For Calophillum
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brasiliense (guanandi), there was statistical similarity between the seedlings of the
tubes 180, 280 cm³ and 560 cm³ bag for all parameters evaluated. For species
Cariniana estrellensis (jequitibá white), the average cartridge of 280 cm³ and 560 cm³
bag, were statistically similar for some parameters. Seedlings Peltophorum dubium
(yopo canjiquinha), produced in the bag 560cm³ had higher averages for all
parameters, and the tubes 180 and 280cm³ form similar in most parameters. To
Schinus terebinthifolius (red pepper tree), the highest averages for all parameters,
correspond to bag 560 cm³, except for the index that Dickson was similar between
the tubes 180 and 280 cm³ and 560 cm³ bag. Even the highest average of indicators
of quality of forest seedlings match the bag 560 cm³, its use may be impaired, since it
produced all species showed folding of the root system and longer for aggregation of
the root ball to the substrate. Considering substrate consumption, space
requirements, length of stay in the nursery, labor, greater care with irrigation and
monitoring of pests and diseases, depending on the species, may be more feasible
using vessels of 180 or 280 cm³.
Descrição
Palavras-chave
Restauração florestal , Calophillum brasiliense , Cariniana estrellensis , Peltophorum dubium , Forest restoration , Schinus terebinthifolius , Biometric parameters , Parâmetros dendrométricos
Citação
DIAS, Tânia Fontana. Volumes de recipientes no crescimento de espécies florestais nativas. 2011. 72 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2011.