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高光谱成像技术在磁处理小黑麦种子干旱和盐胁迫评估中的应用

Application of Hyperspectral Imaging in the Assessment of Drought and Salt Stress in Magneto-Primed Triticale Seeds.

作者信息

Alvarez Jose, Martinez Elvira, Diezma Belén

机构信息

Unidad de Física y Mecánica, ETSIAAB, Universidad Politécnica de Madrid, Av. Puerta de Hierro 2, 28040 Madrid, Spain.

Laboratorio de Propiedades Físicas y Técnicas Avanzadas en Agroalimentación, ETSIAAB, Universidad Politécnica de Madrid, Avda. Puerta de Hierro 2, 28040 Madrid, Spain.

出版信息

Plants (Basel). 2021 Apr 21;10(5):835. doi: 10.3390/plants10050835.

DOI:10.3390/plants10050835
PMID:33919429
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8143295/
Abstract

Hyperspectral imaging is an appropriate method to thoroughly investigate the microscopic structure of internally heterogeneous agro-food products. By using hyperspectral technology, identifying stress symptoms associated with salinity, before a human observer, is possible, and has obvious benefits. The objective of this paper was to prove the suitability of this technique for the analysis of Triticale seeds subjected to both magneto-priming and drought and salt stress conditions, in terms of image differences obtained among treatments. It is known that, on the one hand, drought and salt stress treatments have negative effects on seeds of almost all species, and on the other hand, magneto-priming enhances seed germination parameters. Thus, this study aimed to relate hyperspectral imaging values-neither positive nor negative in themselves-to the effects mentioned above. Two main conclusions were reached: Firstly, the hyperspectral application is a feasible method for exploring the Triticale structure and for making distinctions under different drought and salt stress treatments, in line with the data variability obtained. Secondly, the lower spectral reflectance in some treatments-in the 400-1000 nm segment-is the result of a great number of chemical compounds in the seed that could be related to magneto-priming.

摘要

高光谱成像技术是一种全面研究内部结构不均匀的农产品微观结构的合适方法。利用高光谱技术，在肉眼可观察到之前识别与盐度相关的胁迫症状是可行的，且具有明显优势。本文的目的是通过各处理间获得的图像差异，证明该技术适用于分析经磁引发处理以及干旱和盐胁迫处理的小黑麦种子。一方面，已知干旱和盐胁迫处理对几乎所有物种的种子都有负面影响；另一方面，磁引发处理可提高种子萌发参数。因此，本研究旨在将本身并无正负之分的高光谱成像值与上述影响联系起来。得出了两个主要结论：其一，高光谱应用是一种探索小黑麦结构以及区分不同干旱和盐胁迫处理的可行方法，这与所获得的数据变异性相符。其二，某些处理（在400 - 1000 nm波段）中较低的光谱反射率是种子中大量可能与磁引发相关的化合物所致。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4b21/8143295/9dcd3a243ad4/plants-10-00835-g011.jpg
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A Reliable Methodology for Determining Seed Viability by Using Hyperspectral Data from Two Sides of Wheat Seeds.利用小麦种子两面的高光谱数据确定种子活力的可靠方法。
Sensors (Basel). 2018 Mar 8;18(3):813. doi: 10.3390/s18030813.
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Hyperspectral image analysis techniques for the detection and classification of the early onset of plant disease and stress.用于植物疾病和胁迫早期发作检测与分类的高光谱图像分析技术。
纳米 CeO2 种子引发通过调节 ROS 平衡和 α-淀粉酶活性增强油菜耐盐性。
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