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	Provedor de dados Rev. bras. sementes (1) Autor Carvalho,José Edmar Urano de (1) Cruz,Eniel David (1) Palavra-chave Dead seeds (1) Germination (1) Germination speed (1) Hard seeds (1) Tropical tree (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2006 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Methods of overcoming dormancy in Schizolobium amazonicum Huber ex Ducke (Leguminosae - Caesalpinioideae) seeds Rev. bras. sementes Cruz,Eniel David; Carvalho,José Edmar Urano de. Seed dormancy is a frequent phenomenon in tropical species, causing slow and non-uniform germination. To overcome this, treatments such as scarification on abrasive surface and hot water are efficient. The objective of this study was to quantify seed germination with no treatment (Experiment 1) and identify an efficient method of breaking dormancy in Schizolobium amazonicum Huber ex Ducke seeds (Experiment 2). The effects of manual scarification on electric emery, water at 80ºC and 100ºC and manual scarification on wood sandpaper were studied. Seeds were sown either immediately after scarification or after immersion in water for 24h in a sand and sawdust mixture. Germination and hard seed percentages and germination speed were recorded and analyzed in a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical tree; Germination; Germination speed; Hard seeds; Dead seeds. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222006000300016 Registros recuperados: 1 Primeira ... 1 ... Última

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