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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/4049

Title: Contributo para a optimização da produção em viveiro de Retama sphaerocarpa (L.) Boissier
Other Titles: Contribution for the otimization of nursery production of Retama sphaerocarpa (L.) Boissier
Authors: Fabião, André de Moraes Dorotêa
Advisor: Almeida, Maria Helena Ribeiro
Keywords: Retama sphaerocarpa
ecossystem restoration
seed propagation
Issue Date: 2011
Publisher: ISA/UTL
Citation: Fabião, André de Moraes Dorotêa - Contributo para a optimização da produção em viveiro de Retama sphaerocarpa (L.) Boissier. Lisboa: ISA, 2011
Abstract: The aim of this study was to optimize nursery production of Retama sphaerocarpa. Two seed propagation tests were performed, one with stored seed (1 and 2 years) and other with fresh seed. Germination rate and vigor index were determined for both tests, which were carried out by subjecting the seeds to scarification by two agents, sulfuric acid (96% concentration) and hot water (80ºC), the former for 60 minutes and the latter for 30 seconds, plus an untreated control. Influence of seed conservation period and of parent individuals on germination rate and vigor was also tested. The scarification of seeds using sulfuric acid was found to be the best production method for this species, clearly evident by the highest germination rates (>70%) and the very fast vigor index obtained for fresh and 1 year stored seed. Seed with 2 years of storage showed significant lower germination results than seeds with 1 year of storage. Differences between individuals were also evident and could influence germination success. The technical and economical viability for seed production of this species was confirmed
Description: Mestrado em Gestão e Conservação de Recursos Naturais - Instituto Superior de Agronomia / Universidade de Évora
URI: http://hdl.handle.net/10400.5/4049
Appears in Collections:BISA - Dissertações de Mestrado / Master Thesis

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