Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/174
Título: Seed production and vegetative growth of Hedychium gardnerianum Ker-Gawler (Zingiberaceae) in São Miguel Island (Azores).
Autor: Cordeiro, Nuno
Silva, Luís
Palavras-chave: Crescimento Vegetativo
Vegetative Growth
Hedychium gardnerianum Ker-Gawler
Açores
Azores
Data: 2003
Editora: Universidade dos Açores
Citação: "ARQUIPÉLAGO. Ciências Biológicas e Marinhas". ISSN 0873-4704. Nº 20A (2003): 31-36
Relatório da Série N.º: Ciências Biológicas e Marinhas = Life and Marine Sciences;
Resumo: Hedychium gardnerianum is an important plant invader in the Azores Archipelago. In this research we analysed fecundity, fertility, seed bank and vegetative growth of this herbaceous perennial at three sites at different altitudes in São Miguel Island. The mean number of spikes per hectare varied from 2.7 to 4.0x107. The mean numbers of fruits and seeds per hectare were 8.8x106 and 1.6x107, respectively. However, the number of seeds remaining in the soil was very low when compared to the same number at time of seed shed. Vegetative growth occurs by annual addition of one to four new corms to the rhizome. Each new corm usually originates new leaves, and eventually a spike. In general, older corms do not show leaves, working as storage organs. In H. gardnerianum a high seed production might be a key factor in dispersion, while vegetative growth allows a rapid establishment at new sites.
URI: http://hdl.handle.net/10400.3/174
ISSN: 0873-4704
Aparece nas colecções:ARQ - LMS - Número 20A

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
pp31_36_Cordeiro_Silva_20A.pdf232,72 kBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.