In:
Canadian Journal of Plant Science, Canadian Science Publishing, Vol. 62, No. 1 ( 1982-01-01), p. 71-79
Abstract:
Vertical and oblique measurements of spectral reflectance (0.35–0.75 μm) were made from wheat, barley, oats, sod and fallow plots in a replicated field experiment. Comparisons of reflectance were made to determine the potential for discriminating between these crop types in situ by field spectroscopy. The potential for discrimination was greater when the crops were viewed obliquely. Fallow treatments could be discriminated from cereal crops throughout the season at both viewing angles. Sod treatments could be discriminated from cereal crops at the preboot and anthesis stages of growth. Discrimination amongst wheat, oats and barley was possible as early as 24 days after seeding and was greatest at anthesis. The potential for discrimination amongst these crop types was low after anthesis. The results indicate that crop discriminability is a function of the vertical viewing angle, plant maturity and wavelength of measurement.
Type of Medium:
Online Resource
ISSN:
0008-4220
,
1918-1833
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1982
detail.hit.zdb_id:
2016989-9
SSG:
12
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