Pepper SPAD value estimation method established based on optimized spectral index

The invention discloses a pepper SPAD value estimation method established based on optimized spectral indexes, a pepper SPAD value estimation model is comprehensively evaluated according to the precision and stability of a regression model, an optimal estimation model for pepper SPAD value estimation is screened out, the precision and stability of the estimation model are comprehensively optimal, the generalization ability of the model is high, and the method is suitable for being applied to pepper SPAD value estimation. Therefore, the estimation model can be effectively used for estimating the SPAD value of the pepper, and a theoretical basis and technical support are provided for accurate prediction of the SPAD value of the canopy in the growth period of the pepper. 本发明公开了一种基于优化光谱指数建立的辣椒SPAD值估测方法，本发明根据回归模型的精度和稳定性综合评价辣椒SPAD值估测模型，筛选出用于辣椒SPAD值估测的最优估测模型，该估测模型的精度和稳定性综合最优，且该模型的泛化能力强，表明该估测模型能够有效用于辣椒SPAD值的估测中，为辣椒生长时段冠层SPAD值的准确预测提供了理论依据和技术支持。