Photometric method of determination of resistance of cereals to diseases

The study of chlorophyll content in infected and healthy leaves of wheat an d barley seedlings was conducted using the laser photometer <<LAFOT>>. It w as measured by absorption degree of laser radiation on a wave 632.8 nm by l eaves of living seedlings. The received data have shown the possibility to work up a simple, fast and effective techniques of the estimation of wheat tolerance to brown rust, wheat resistance to snow mold and barley resistanc e to rhynchosporiosis.