Publicação: Morfologia de plântulas e estádios juvenis de espécies invasoras
Carregando...
Arquivos
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
The morphology of 20 species of weeds that occur in the most common crops in Maringá, Paraná State, Brazil and adjacent regions were described at early developmental stages, in order to identify the species in the field and provide information for taxonomic and ecological works. Sixteen species featured epigeal-foliaceous seedlings. The seedling in Cardiospenuum halicacabum is epigeal-fleshy; in Cenchrus echinatus and Digitaria horizontalis it is hypogeal and in Commelina virginica is epigeal-cryptocotyledonar. The differentiation of the first eophyll occurred within ten (Digitaria horizontalis) to 35 days (Bidens pilosa) and the first metaphyll appeared within 22 (Commelina virginica) to 49 days (Acanthospenuum australe). The number of eophylls varied from one to four, and the phyllotaxis varied from alternate to opposite.
Descrição
Palavras-chave
Morphology, Sapling, Seedling, Weed, Acanthospermum australe, Bidens pilosa, Cardiospermum halicababum, Cenchrus echinatus, Commelina, Commelina virginica, crop, Digitaria horizontalis, morphology, plant, plant development, seedling, weed
Idioma
Português
Como citar
Acta Scientiarum - Biological Sciences, v. 29, n. 3, p. 261-268, 2007.
