Reflectance Measurements in Cotton Fields

Dr. Glen Ritchie of the University of Georgia has used model PS-100 spectroradiometer to take reflectance measurements in cotton fields and estimate defoliation. Chlorophyll gives plant leaves a reflectance spectrum characteristically different from that of soil. Reflectance measurements can be reported in µmol m^-2 s^-1, W m^-2, or as a relative value.

View poster presented at ASA meeting.

Dr. Glen Ritchie collecting reflectance data with PS-100

Application Summary

Summary

Estimating defoliation of cotton using reflectance data.

Apogee Sensors Used

PS-100 Spectroradiometer

Organization

University of Georgia

Location

Georgia

Reference Article

Ritchie, G.L. and C.W. Bednarz. 2005. Estimating defoliation of two distinct cotton types using reflectance data. J. Cotton Sci. 9:182-188.

Poster from ASA meeting 2006