Canopy chlorophyll content measuring instrument canopy chlorophyll analyzer
Chlorophyll content during plant growth is a very important parameter. Chlorophyll has an indicative effect on the photosynthesis of plants and the nutritional status of developmental stages. The chlorophyll concentration of the leaves can only reflect the growth of individual plants, and the chlorophyll density of the canopy is the content of chlorophyll per unit area, which is exactly corresponding to the surface information acquired by remote sensing. Therefore, it is very important to study the CCD remote sensing estimation method. The canopy chlorophyll content was determined by canopy chlorophyll analyzer.
Based on the previous studies, combined with the spectral characteristics of wheat under the stress of stripe rust, some vegetation and differential indices were selected and constructed. Through the correlation analysis, model construction, and accuracy tests, the canopy chlorophyll analyzer was determined as follows: Conclusion: There is a significant negative correlation between chlorophyll density (CCD) and wheat DI. With the worsening of wheat condition, CCD is gradually reduced. Therefore, accurate estimation of wheat CCD through remote sensing can help determine the severity of wheat disease.
Through canopy chlorophyll analyzer research found that the use of hyperspectral remote sensing inversion of wheat chlorophyll density is feasible, and high precision, but also to provide information for the identification of wheat diseases, therefore, this study is important for the judgment of crop growth, prevention of crop diseases has an important significance.
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