Data/hora: 15/06/2024 01:35:04

Biblioteca(s): | Embrapa Soja.
Data corrente: | 07/04/2004
Data da última atualização: | 27/07/2007
Autoria: | KRZYZANOWSKI, F. C.; WEST, S. H.; FRANÇA NETO, J. de B.
Título: | Drying soybean seed using ambient temperature at low relative humidity.
Ano de publicação: | 2004
Fonte/Imprenta: | In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
Páginas: | p. 344.
Série: | (Embrapa Soja. Documentos, 228).
Idioma: | Inglês
Notas: | Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
Conteúdo: | Under subtropical and tropical environments soybean seed (Glycine max (L.) Merrill) are harvested early to avoid deterioration from weathering. Careful after-harvest drying is required and is an important step in maintaining the physiological quality of the seed. Soybean seed should be harvested when their moisture content is in a range of 16-20%. Traditional drying utilizes a high temperature and high humidity air stream passed through the seed mass. The drying time is long because the system is inefficient and the high temperature increases the risk of thermal damage to the seed. New technology identified as heat pipe technology (HPT) is available and has the unique feature of removing the moisture out of the air stream before it is passed through the seed mass at the same environmental temperature. Two studies were conducted to evaluate the performance of HPT to dry soybean seed. In the first trial the seeds were dried from 17.5% to 11.1% in 2 hours and 29 minutes and in the second trial the seeds were dried from 22.56% to 11.88% in 16 hours and 32 minutes. This drying process caused no reduction in seed quality as measured by the standard germination, tetrazolium-viability, accelerated aging and seedling vigour classification tests. The only parameter that indicated a slight seed quality reduction was tetrazolium vigour in the second trial. It was concluded that the HPT system is a promising technology for drying soybean seed when efficiency and maintenance of physiological quality is desired.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (23781-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS