Data/hora: 03/06/2024 03:49:51

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	24/09/1992	
Data da última atualização: 	28/10/2004	
Autoria: 	MAEDA, J. A.; UNGARO, M. R. G.	
Afiliação: 	Instituto Agronomico de Sao Paulo, P.O.Box 28, 13100 - Campinas, Sao Paulo, Brazil.	
Título: 	Study of sunflower "seed" dormancy.	
Ano de publicação: 	1985	
Fonte/Imprenta: 	In: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata. Actas. Mar del Plata: ASAGIR/ISA, 1985. t.1, p.73-79.	
Idioma: 	Inglês	
Conteúdo: 	Sunflower, as an oil seed, shows fast deterioration, requiring specific storage conditions. In addition, sunflower crop usually produces dormant "seeds", therefore requiring special conditions for germination. This paper reports a study on dormant sunflower "seeds" with respect to some germination and storage conditions. Various treatments were applied on a stock of sunflower "seeds": a) germination under different temperatures and light regimes; b) intermittent rinsing during different periods of time; c) scarification with concentrated sulfurie acid during different periods of time: d) "seed" storage and conservation. The best results were obtained with the germination at 35oC and with "seed" rinsing in running water for at least 15h; the "seed" conservationat 10oC induced a dormancy release of about 50% after 20 days. At 15oC or 20oC, that value was reached only after more than 2 mounths of storage.	
Palavras-Chave: 	Brasil; Sao Paulo; Seed; Sunflower.	
Thesagro: 	Dormência; Girassol; Semente.	
Thesaurus Nal: 	Brazil; dormancy.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)