Monte Carlo simulation of light propagation in healthy and diseased onion bulbs with multiple layers
Light propagation in 18-layer onion bulbs was simulated by Monte Carlo method. 18 cases of infected onions demonstrated potential for nondestructive detection. Confident detection was determined with infection as deep as in the 3rd scale. Optimal window for disease detection was 670870nm especially at 800nm. Spatially-resolved reflectance was effective to detect Neck Rot-infected onions.
monte carlo simulation light propagation onion reflectance pathogen penetration depth