BI-DIRECTIONAL SCATTERING CHARACTERISTICS OF HEALTHY, GREEN SOYBEAN AND CORN LEAVES IN VIVO,
Abstract
Measurements were made to determine the bi-directional scattering characteristics of living, green soybean and corn leaves in the range from 375 mm to 1 millimicron m. A goniometer was constructed to study bi-directional scattering on the leaves of potted soybean and corn plants. The leaf sample was held in a plane and light of a selected wavelength was incident at a given angle. A detector was then moved around the sample at a constant radius resulting in a polar plot of scattered radiant power as a function of observation angle for a given angle of incidence and wavelength. The results show strong specular components of reflection in addition to diffuse components for both soybean and corn leaves. The results describe a simple four layer bi-directional scattering model for a soybean leaf. This model has a rough surface with isotropy relative to the midvein. The results for a corn leaf describe a simple three layer bi-directional scattering model. This model has a rough surface with a definite anisotropy relative to the midvein. The results are two-dimensional polar graphs. Measurements were carried out which indicate the extension of these results to three dimensions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1969
- Accession Number
- AD0691262
Entities
People
- Harry T. Breece Iii
- Roger A. Holmes
Organizations
- Purdue University