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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/20229
Título: 
Phenology, sex ratio, and spatial distribution among dioecious species of Trichilia (Meliaceae)
Autor(es): 
Morellato, LPC
Instituição: 
Universidade Estadual Paulista (UNESP)
ISSN: 
1435-8603
Resumo: 
The flowering, sex ratio, and spatial distribution of four dioecious species of Trichilia (Meliaceae) were studied in a semi-deciduous forest in southeastern Brazil. All reproductive trees (T. clausseni, T. pallida and T. catigua) with dbh greater than or equal to5 cm within a 1-ha plot were collected, sexed, mapped and, for individuals of each species, the distances to the nearest neighbour of the same and opposite sex were measured. For the shrub species T elegans (dbh <5 cm), all reproductive individuals were sampled randomly in 10 samples of 10 x 10 m. The reproductive phenology was observed at weekly to monthly intervals from May 1988 to January 1990. The species are strictly dioecious, did not present any sex-mixed trees or sex switching during the study, and sex ratio did not differ significantly from 1:1. The size distributions and the relative size variation were not significantly different. between sexes. There was no significant segregation or clumping between individuals of either sex and no fruit production without pollination. Onset of flowering and flowering peak were synchronous between male and female plants for all species studied. Flower synchrony was related to outcrossing and pollinator attraction rather than climatic factors.
Data de publicação: 
1-Jul-2004
Citação: 
Plant Biology. Stuttgart: Georg Thieme Verlag Kg, v. 6, n. 4, p. 491-497, 2004.
Duração: 
491-497
Publicador: 
Georg Thieme Verlag Kg
Palavras-chaves: 
  • dioecy
  • Meliaceae
  • phenology
  • sex ratio
  • spatial distribution
  • Trichilia
  • tropical forest
Fonte: 
http://dx.doi.org/10.1055/s-2004-817910
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/20229
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