CROP DISCRIMINABILITY IN THE VISIBLE AND NEAR INFRARED REGIONS

Field spectroradiometer data at 10-nm intervals in the region of 350 to 1840 nm, from 1976 experimental field plots of wheat, oats, barley, fababean, soybean, and rapseed, were analyzed statistically to assess discriminability among the crops. At early stages of plant growth, interference from soil reflectance was dominant. Analysis of the data obtained between early heading and early seed development showed similar spectral patterns among the crops and their cultivars. Unique differences were obtained among them at certain narrow bands in relation to the over-all mean radiance based on coefficients of variation. An index of discriminability, determined to assess separability of crops throughout the spectrum, was used to distinguish between two wheat cultivars at 950 and 1400 nm which corresponds to the water absorption region for leaves. /Author/

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  United States  22046
  • Authors:
    • Rao, V R
    • Branch, E J
    • Mack, A R
  • Publication Date: 1978-9

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  • Accession Number: 00183225
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 14 1978 12:00AM