Data/hora: 06/06/2024 01:51:44

Biblioteca(s): | Embrapa Soja.
Data corrente: | 09/03/2005
Data da última atualização: | 09/03/2005
Autoria: | FRANÇA NETO, J. B.; KRZYZANOWSKI, F. C.; PÁDUA, G. P.; HENNING, A. A.; COSTA, N. P.
Título: | The use of the accelerated aging test for estimating the potential of seedling emergence in the field of soybean seed lots.
Ano de publicação: | 2004
Fonte/Imprenta: | In: SEMINARIO PANAMERICANO DE SEMILLAS, 19., 2004, Asunción. Conferencias y resumenes de trabajos presentados. Asunción, 2004. p. 277.
Idioma: | Inglês
Conteúdo: | The accelerated aging test (AAT) is used for estimating storage potential of seed lots. However few studies, that relate the results of AAT with soybean seedling emergence in the field (SEF), are available in the literature. The objective of this study was to verify  the possibility of using tha data of vigor provided by the AAT (41oC/100%RH/24h) for predicting the potential of soybean SEF. Regression analyses were obtained with the results provided by the AAT with the ones of SEF during the period of five years, from 1998 to 2002. A total of 879 seed samples of different cultivars were evaluated. In each of the study year the AAT with an exposure period of 24 was performed in October, and in November the evaluations of SEF were performed in Londrina. Regression analyses between the results of SEF and AAT were individually evaluated for each and in conjunction for the five-year period. The conjunction analysis for the five-year period provided an equation (SEF = 0,6316AAT + 28,922; r2 = 0,83 ***), which was also similar to the individual equations obtained each year. This equation was applied to AAT results of 100 seed samples evaluated in 2002. The values of SEF estimated by this equation were correlated with the recorded data of SEF, resulting in a r2 of 0.80, wich highly significant. This equation was considered reliable for estimating SEF of soybean seed samples in soils of Londrina, with temperature and moisture levels near to ideal conditions.
Palavras-Chave: | Teste de semente.
Thesagro: | Soja; Teste de Vigor.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (24818-1) - UPC - SP - -- - 10258 -  - 10258 - DIS