Abstract

This study is devoted to the study of the spectral characteristics of the reflection of healthy and diseased plants of winter wheat. The studies were carried out in 2021 at the on experimental crops of winter wheat artificially infected with a strain of the fungus Fusarium graminearum of the field site FSBSI VIZR of the research laboratory in the Belgorod region. Various options included studies of the spectral characteristics of the reflection of infected areas of winter wheat crops after treatment with the chemical fungicide Input, EC and the biological fungicide Alirin-B, F, taking into account the biological effectiveness of these protection products. Artificial infection of test plots of winter wheat was carried out with a strain of the fungus Fusarium graminearum from the VIZR collection. The values of the spectral brightness of healthy and diseased winter wheat plants were determined using a PSR-1100 spectroradiometer. in the wavelength range of electromagnetic radiation from 320 to 1100 nm and is shown by the spectral brightness coefficient (SBC). Studies have shown that spectroradiometry makes it possible to identify informative features that show the differences between healthy and Fusarium graminearum-infected plants in winter wheat based on the spectral brightness of the reflection of optical waves. According to the spectral characteristics of reflection, it was found that significant differences in the spectral brightness of healthy and infected plants of winter wheat are observed in the red and near infrared subrange of optical wavelengths. The dependence of the SBC of winter wheat plants on the biological effectiveness of protective agents was revealed. When using a chemical fungicide against Fusarium graminearum, the SBC of winter wheat plants is 1.8 times higher than in areas treated with a biological fungicide, which correlates with the biological effectiveness of the applied pesticides.

中文翻译：

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脱塞勒远程监测数字技术中谷物作物反射光谱特性的测定

摘要

本研究致力于冬小麦健康和病株反射光谱特征的研究。这些研究于 2021 年在别尔哥罗德地区研究实验室 FSBSI VIZR 田间试验场的人工感染禾谷镰刀菌菌株的冬小麦实验作物上进行。各种选择包括研究冬小麦作物受感染区域在化学杀菌剂Input、EC和生物杀菌剂Alirin-B、F处理后的反射光谱特征，同时考虑到这些保护产品的生物有效性。使用 VIZR 保藏库中的禾谷镰刀菌菌株对冬小麦试验田进行人工感染。使用 PSR-1100 分光辐射计测定健康和患病冬小麦植株的光谱亮度值。电磁辐射的波长范围为 320 至 1100 nm，由光谱亮度系数 (SBC) 表示。研究表明，光谱辐射测量法可以根据光波反射的光谱亮度来识别显示冬小麦健康和受禾谷镰刀菌感染植物之间差异的信息特征。根据反射光谱特征，发现冬小麦健康植株和感染植株的光谱亮度在光波长的红色和近红外子区域存在显着差异。揭示了冬小麦植株的 SBC 对保护剂生物有效性的依赖性。当使用化学杀菌剂对抗禾谷镰刀菌时，冬小麦植株的SBC比使用生物杀菌剂处理的地区高1.8倍，这与所施用农药的生物有效性相关。