| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000460121 |
| ISSN: | 1679-9275 |
| Authors: | Gomes-Junior, Francisco Guilhien1 Cicero, Silvio Moure1 Vaz, Carlos Manoel Pedro2 Lasso, Paulo Renato Orlandi2 |
| Institutions: | 1Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Instrumentacao Agropecuaria, Sao Carlos, Sao Paulo. Brasil |
| Year: | 2019 |
| Volumen: | 41 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English 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 |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Gramíneas, Anatomía e histología, Maíz, Zea mays, Semillas, Morfología vegetal, Tomografía computarizada, Rayos X-3D |
| Keyword: | Gramineae, Anatomy and histology, Corn, Seeds, Zea mays, Morfology, Seed internal morphology, 3D X-ray imaging, Computed tomography |
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