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	Provedor de dados BJB (1) Rev. Bras. Bot. (1) Autor FELIPPE,G. M. (1) FELIPPE,G.M. (1) RONDON,J. N. (1) SASSAKI,R. M. (1) SASSAKI,REGINA M. (1) ZAIDAN,L. B. P. (1) ZAIDAN,LILIAN B.P. (1) Mais... Palavra-chave Bidens gardneri (2) Light sensitivity (2) Longevity (1) Psychotria barbiflora (1) Seed viability (1) Vernonia herbacea (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 1999 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Effect of storage of achenes of Bidens gardneri Baker on light sensitivity during germination Rev. Bras. Bot. SASSAKI,REGINA M.; ZAIDAN,LILIAN B.P.; FELIPPE,G.M.. Bidens gardneri is a very common herbaceous species in the cerrados of the state of São Paulo, whose seeds become light sensitive at 25°C only. Achenes of this species were stored in refrigerator at 4°C and in cerrado soil and in forest soil. The field experiments were carried out in the cerrado at the Reserva Biológica e Estação Experimental de Moji Guaçu, in Moji Guaçu and in the forest of the Instituto de Botânica, in São Paulo, Brazil. Achenes of B. gardneri vary in size and achenes from 7 to 12 mm long were used. Achenes stored for up to 6 months at 4°C showed light sensitivity; after 9 months storage, the difference in germination between light and darkness had disappeared for the smallest and the largest achenes used. Seeds of B. gardneri germinated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bidens gardneri; Longevity; Light sensitivity. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100010 Germination of seeds from herbaceous plants artificially stored in cerrado soil BJB SASSAKI,R. M.; RONDON,J. N.; ZAIDAN,L. B. P.; FELIPPE,G. M.. The germination of three cerrado herbaceous species: Bidens gardneri, Vernonia herbacea (Asteraceae) and Psychotria barbiflora (Rubiaceae) was studied using seeds stored in cerrado soil and in refrigerator at 4°C. The field experiment was carried out at a preserved area of cerrado, the Reserva Biológica e Estação Experimental de Mogi-Guaçu, State of São Paulo, Brazil. The soil was collected in the same cerrado where the experiment was carried out. The achenes of Bidens gardneri are light sensitive, but this sensitivity disappeared when the achenes were stored in soil. With 3 months storage in cerrado soil no differences in germination in light or darkness were detected. The number of intact achenes retrieved from storage in soil decreased with increasing... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bidens gardneri; Vernonia herbacea; Psychotria barbiflora; Seed viability; Light sensitivity. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200011 Registros recuperados: 2 Primeira ... 1 ... Última

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