Encontrados 4 documentos, a visualizar página 1 de 1
Vegetative propagation of the endangered Azorean tree, Picconia azorica
Martins, José; Moreira, Orlando; Silva, Luís; Moura, MónicaPicconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. ...
Propagation of the endangered Azorean cherry Prunus azorica using stem cuttings...
Moreira, Orlanda; Martins, José; Silva, Luís; Moura, MónicaPrunus azorica (Hort. ex Mouillef.) Rivas Mart., Lousã, Fern. Prieto, E. Dias, J.C. Costa & C. Aguiar is an endangered tree endemic to the Azores, with an ecological and ornamental interest. The objective of this study was to determine the conditions necessary for the successful propagation of P. azorica by stem cuttings and air-layering. Stem cuttings collected in March with two apical leaf pairs pruned to 1/3...
Inventariação, caracterização morfológica e análise da capacidade germinativa d...
Maciel, Graciete Belo; Silva, Luís; Moura, Mónica; Cid, Manuel; Costa, PauloXIII Expedição Científica do Departamento de Biologia - Flores e Corvo 2007. ; A XIII Expedição Científica do Departamento de Biologia às ilhas das Flores e do Corvo, teve como principal objectivo dar continuidade aos trabalhos que esta equipa tem vindo a desenvolver, designadamente na ilha de S. Miguel, no âmbito da conservação e preservação das variedades agrícolas tradicionais cultivadas no Arquipélago dos ...
Sabotage-tolerance and trust management in desktop grid computing
Domingues, Patrício; Sousa, Bruno; Silva, Luís MouraThe success of grid computing in open environments like the Internet is highly dependent on the adoption of mechanisms to detect failures and malicious sabotage attempts. It is also required to maintain a trust management system that permits one to distinguish the trustable from the non-trustable participants in a global computation. Without these mechanisms, users with data-critical applications will never rel...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||