Data/hora: 03/06/2024 08:23:01

Provedor de dados: 	87	
País: 	Brazil	
Título: 	Potential for seed bank formation of two weed species from Brazilian Amazonia	
Autores: 	Dias-Filho,Moacyr B.	
Data: 	1999-08-01	
Ano: 	1999	
Palavras-chave: 	Brazil; Seed; Longevity; Stachytarpheta cayennensis; Ipomoea asarifolia.	
Resumo: 	The potential for seed bank formation of two perennial weed species, Ipomoea asarifolia (Desr.) Roem. &amp;amp; Schult. (Convolvulaceae) and Stachytarpheta cayennensis (Rich.) M. Vahl (Verbenaceae), both common in Amazonia , was evaluated in a degraded pasture area in eastern Brazilian Amazonia . Seeds were enclosed in nylon mesh packets and placed at the soil surface or buried at 5 or 10 cm deep. The number of viable seeds was recorded at 6, 10, 14 and 18 months after burial. Results showed that S. cayennensis has the ability to form persistent soil seed bank, while I. asarifolia seeds do not build up in the soil seed bank. For S. cayennensis and, to some extent, for I. asarifolia, seed survival was highest at greater burial depths.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581999000200002	
Editor: 	Sociedade Brasileira da Ciência das Plantas Daninhas	
Relação: 	10.1590/S0100-83581999000200002	
Formato: 	text/html	
Fonte: 	Planta Daninha  v.17 n.2 1999	
Fonte: 	info:eu-repo/semantics/openAccess