Pinus pinaster Ait. germination and development on different forest substrates, under laboratory conditions

• Autor(a) principal: Raio, André Filipe Horta
• Data de Publicação: 2022
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/36523
• topic: Maritime pine; Germination; Natural regeneration; Survival; Development

Most of studies involving maritime pine (Pinus pinaster) has focused mainly on the post-fire regeneration within different forest conditions. This study had the main goal to utilize diverse forest floor substrates from maritime pine stands of the central coast of Portugal, and within optimal laboratorial conditions observe germinative capacity of P. pinaster seeds, as well as the development and survival of seedlings. From the data analysis made, it was observed a preponderance of germination within substrates of “burnt” and “sand”. Although survival of seedlings presented heterogeneous results among the substrates, it was observed in the “sand” substrate a bigger mortality of seedlings. Development of seedlings was favoured within “Litter” substrate and less favoured within “Moss” substrate, despite transplantation results. Bigger velocity and/or germination rate of seeds, even if not too relevant, as well as competition of seedlings within substrates, didn’t imply less mortality rates, or a greater development of seedlings, being the opposite equally verified.