A method for estimating spore numbers of Erysiphe cruciferarum using infra-red reflectance analysis
A method for estimating spore numbers of Erysiphe cruciferarum using infra-red reflectance analysis
Doughty, E.A.; Williamson, C.J.; Cowe, I.A.
Cruciferae Newsletter (8): 40-42
1983
Eight swede cultivars were grown in a glasshouse and inoculated with E. cruciferarum at the 2-3 leaf stage. After 33 days the numbers of spores present were estimated using infrared reflectance analysis and haemocytometer counts. The correlation coefficient between the two methods was very high.