Identification of Tilletia foetida, Ustilago tritici, and Urocystis tritici Based on Near-Infrared Spectroscopy

Figure 3

Pathogen identification results of the BPNN models built in the modeling spectral region of 4000–5000 cm⁻¹ with a ratio of the training set to the testing set of 3 : 1 and the number of neurons in the hidden layer equal to 50 on each data subset when Data treatment method 2 was used.