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- Title
Composição florística e distribuição sazonal do banco de sementes em Floresta Ombrófila Mista Aluvial, Araucária, PR.
- Authors
Silva-Weber, Ariadne Josiane Castoldi; Nogueira, Antonio Carlos; Carpanezzi, Antonio Aparecido; Galvão, Franklin; Weber, Saulo Henrique
- Abstract
In this research it was evaluated the potential of the soil seed bank in a remaining of Subtropical Ombrophilous Alluvial Forest (Araucaria Forest), by quali-quantitative analysis of seed germination. Additionally it was tested the occurrence of seasonal variation of the soil seed bank. The forest remaining located in Araucaria county, Parana State, Brazil, and it is influenced by Barigui river, affluent of Iguaçu river. It was used the completely randomized experimental design with ten replications. The soil seed bank was collected in three seasons at depth (of 10 cm plus litter), using a 0.40 m x 0.40 m sample square. The collected samples were placed in wood boxes in greenhouse, during 8 months. It was observed a season average of 5,732 individuals m-2, distributed into 276 species (120 genus, 54 families). A total of 34,780 seeds germinate. The number of seeds did not presented statistical difference among seasons. The floristic composition of the soil seed bank was influenced by anthropized surrounding areas.
- Subjects
SOIL seed banks; ARAUCARIA; GERMINATION; GREENHOUSES; FORESTS &; forestry
- Publication
Brazilian Journal of Forest Research / Pesquisa Florestal Brasileira, 2012, Vol 32, Issue 70, p193
- ISSN
1809-3647
- Publication type
Article
- DOI
10.4336/2012.pfb.32.70.77