Data/hora: 02/06/2024 17:45:06

Provedor de dados: 	Acta Scientiarum: Agronomy	
País: 	Brazil	
Título: 	X-ray microtomography in comparison to radiographic analysis of mechanically damaged maize seeds and its effect on seed germination	
Autores: 	Gomes Junior, Francisco Guilhien; Cícero, Silvio Moure; Vaz, Carlos Manoel Pedro; Lasso, Paulo Renato Orlandi.	
Data: 	2019-03-13	
Ano: 	2019	
Palavras-chave: 	Zea mays; Seed internal morphology; 3D X-ray imaging; Computed tomography.	
Resumo: 	Among the most relevant aspects of seed production, mechanical damage may affect seed germination and reduce health and vigor. This study introduces a noninvasive high-resolution imaging procedure for evaluating the mechanical damage to maize seeds and the effects on seed germination. Seeds with different levels of mechanical damage were evaluated using a benchtop micro-computed tomography system (micro-CT) and digital X-ray equipment. The two-dimensional transaxial, coronal and sagittal micro-CT sections were used to inspect the seed anatomy and the mechanical injuries in the internal seed tissue. Germination tests were performed using paper towel rolls (25°C for 7 days) in which the seedling length was evaluated on a daily basis, and the seedling dry biomass was measured at the seventh germination day. The micro-CT cross-sectional images allowed an efficient spatial characterization of the mechanical damage inside the seeds. On average, mechanically damaged seeds produced seedlings with a length 24% shorter and a dry biomass 65% less than that of the undamaged seeds. We concluded that the micro-CT technique provides an efficient means to inspect mechanically damaged maize seeds and allows for a reliable association with germination response.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42608

10.4025/actasciagron.v41i1.42608	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42608/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42608/751375147161	
Formato: 	application/pdf

application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e42608

Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e42608

1807-8621

1679-9275	
Fonte: 	Copyright (c) 2019 Acta Scientiarum. Agronomy

https://creativecommons.org/licenses/by/4.0