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Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties
BACKGROUND: High grain breakage rate is the main limiting factor encountered in the mechanical harvest of maize grain. X-ray micro-computed tomography (μCT) scanning technology could be used to obtain the three-dimensional structure of maize grain. Currently, the effect of maize grain structure on t...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933881/ https://www.ncbi.nlm.nih.gov/pubmed/31889985 http://dx.doi.org/10.1186/s13007-019-0538-1 |
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author | Hou, Junfeng Zhang, Ying Jin, Xiuliang Dong, Pengfei Guo, Yanan Wang, Keru Fan, Yinghu Li, Shaokun |
author_facet | Hou, Junfeng Zhang, Ying Jin, Xiuliang Dong, Pengfei Guo, Yanan Wang, Keru Fan, Yinghu Li, Shaokun |
author_sort | Hou, Junfeng |
collection | PubMed |
description | BACKGROUND: High grain breakage rate is the main limiting factor encountered in the mechanical harvest of maize grain. X-ray micro-computed tomography (μCT) scanning technology could be used to obtain the three-dimensional structure of maize grain. Currently, the effect of maize grain structure on the grain breakage rate, determined using X-ray μCT scanning technology, has not been reported. Therefore, the objectives of this study are: (i) to obtain the shape, geometry, and structural parameters related to the breakage rate using X-ray μCT scanning technology; (ii) to explore relationships between these parameters and grain breakage rate. RESULT: In this study, 28 parameters were determined using X-ray μCT scanning technology. The maize breakage rate was mainly influenced by the grain specific surface area, subcutaneous cavity volume, sphericity, and density. In particular, the breakage rate was directly affected by the subcutaneous cavity volume and density. The maize variety with high density and low subcutaneous cavity volume had a low breakage rate. The specific surface area (r = 0.758*), embryo specific surface area (r = 0.927**), subcutaneous cavity volume ratio (0.581*), and subcutaneous cavity volume (0.589*) of maize grain significantly and positively correlated with breakage rate. The cavity specific surface area (− 0.628*) and grain density (− 0.934**) of maize grain significantly and negatively correlated with grain breakage rates. Grain shape (length, width, thickness, and aspect ratio) positively correlated with grain breakage rate but the correlation did not reach statistical significance. The susceptibility of grain breakage increased when kernel weight decreased (− 0.371), but the effect was not significant. CONCLUSIONS: The results indicate that X-ray μCT scanning technology could be effectively used to evaluate maize grain breakage rate. X-ray μCT scanning technology provided a more precise and comprehensive acquisition method to evaluate the shape, geometry, and structure of maize grain. Thus, data gained by X-ray μCT can be used as a guideline for breeding resistant breakage maize varieties. Grain density and subcutaneous cavity volume are two of the most important factors affecting grain breakage rate. Grain density, in particular, plays a vital role in grain breakage and this parameter can be used to predict the breakage rate of maize varieties. |
format | Online Article Text |
id | pubmed-6933881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-69338812019-12-30 Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties Hou, Junfeng Zhang, Ying Jin, Xiuliang Dong, Pengfei Guo, Yanan Wang, Keru Fan, Yinghu Li, Shaokun Plant Methods Research BACKGROUND: High grain breakage rate is the main limiting factor encountered in the mechanical harvest of maize grain. X-ray micro-computed tomography (μCT) scanning technology could be used to obtain the three-dimensional structure of maize grain. Currently, the effect of maize grain structure on the grain breakage rate, determined using X-ray μCT scanning technology, has not been reported. Therefore, the objectives of this study are: (i) to obtain the shape, geometry, and structural parameters related to the breakage rate using X-ray μCT scanning technology; (ii) to explore relationships between these parameters and grain breakage rate. RESULT: In this study, 28 parameters were determined using X-ray μCT scanning technology. The maize breakage rate was mainly influenced by the grain specific surface area, subcutaneous cavity volume, sphericity, and density. In particular, the breakage rate was directly affected by the subcutaneous cavity volume and density. The maize variety with high density and low subcutaneous cavity volume had a low breakage rate. The specific surface area (r = 0.758*), embryo specific surface area (r = 0.927**), subcutaneous cavity volume ratio (0.581*), and subcutaneous cavity volume (0.589*) of maize grain significantly and positively correlated with breakage rate. The cavity specific surface area (− 0.628*) and grain density (− 0.934**) of maize grain significantly and negatively correlated with grain breakage rates. Grain shape (length, width, thickness, and aspect ratio) positively correlated with grain breakage rate but the correlation did not reach statistical significance. The susceptibility of grain breakage increased when kernel weight decreased (− 0.371), but the effect was not significant. CONCLUSIONS: The results indicate that X-ray μCT scanning technology could be effectively used to evaluate maize grain breakage rate. X-ray μCT scanning technology provided a more precise and comprehensive acquisition method to evaluate the shape, geometry, and structure of maize grain. Thus, data gained by X-ray μCT can be used as a guideline for breeding resistant breakage maize varieties. Grain density and subcutaneous cavity volume are two of the most important factors affecting grain breakage rate. Grain density, in particular, plays a vital role in grain breakage and this parameter can be used to predict the breakage rate of maize varieties. BioMed Central 2019-12-27 /pmc/articles/PMC6933881/ /pubmed/31889985 http://dx.doi.org/10.1186/s13007-019-0538-1 Text en © The Author(s) 2019 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Hou, Junfeng Zhang, Ying Jin, Xiuliang Dong, Pengfei Guo, Yanan Wang, Keru Fan, Yinghu Li, Shaokun Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title | Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title_full | Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title_fullStr | Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title_full_unstemmed | Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title_short | Structural parameters for X-ray micro-computed tomography (μCT) and their relationship with the breakage rate of maize varieties |
title_sort | structural parameters for x-ray micro-computed tomography (μct) and their relationship with the breakage rate of maize varieties |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933881/ https://www.ncbi.nlm.nih.gov/pubmed/31889985 http://dx.doi.org/10.1186/s13007-019-0538-1 |
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