| Full text | |
| Author(s): |
Gomes-Junior, Francisco Guilhien
[1]
;
Cicero, Silvio Moure
[1]
;
Pedro Vaz, Carlos Manoel
[2]
;
Orlandi Lasso, Paulo Renato
[2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Dept Produc Vegetal, Escola Super Agr Luiz de Oueiroz, Av Padua Dias 11, Cx Postal 09, BR-13418900 Piracicaba, SP - Brazil
[2] Embrapa Instrumentacao, Empresa Brasileira Pesquisa Agr, Sao Carlos, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Acta Scientiarum. Agronomy; v. 41, 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
ABSTRACT. 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. (AU) | |
| FAPESP's process: | 12/24683-7 - Comparison between radiological and tomographic methods for evaluation of mechanical damage in seeds |
| Grantee: | Francisco Guilhien Gomes Junior |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 15/24008-6 - Development of imaging analysis techniques to assess the vigor and internal morphology of seeds |
| Grantee: | Francisco Guilhien Gomes Junior |
| Support Opportunities: | Regular Research Grants |