Yield Loss Prediction Tool for Field-Specific Risk Management of Asian Soybean Rust

USA, Lexington Kentucky - July 13th, 2007 (Joe Omielan) - Project Update

This is a resistant leaflet with red brown, non-sporulating lesions.

This is a susceptible leaflet with tan, sporulating lesions.

The LI 6400 was used to measure the photosynthetic rates of control and infected leaves.

Backlit photos were taken of the leaf area measured by the LI 6400. This is an example of a heavily infected leaflet. Dr. Claudia Godoy is quantifying the diseased areas on the images from this trial and from her trials in Brazil.