Complex permittivity of the potato leaf during imposed drought stress

Author

Colpitts, Bruce G. ; Coleman, Warren K.

Author_Institution

Dept. of Electr. Eng., New Brunswick Univ., Fredericton, NB, Canada

Volume

35

Issue

4

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

1059

Lastpage

1064

Abstract

Complex permittivity of the potato leaf is measured over a range of expected moisture conditions in the context of relating synthetic aperture radar scattering to crop moisture status. Measurements were performed on excised leaves to determine complex relative permittivity, and leaf water relations including gravimetric moisture, relative water content, osmotic potential, water potential, and turgor pressure. Relationships between plant water relations and complex permittivity are shown and do not conform to the dual-dispersion model of Ulaby and El-Rayes (1987)

Keywords

agriculture; backscatter; geophysical techniques; hydrological techniques; permittivity; radar cross-sections; remote sensing by radar; synthetic aperture radar; SAR; Solanum tuberosum; agricultural crops; backscatter; complex permittivity; crop moisture status; drought stress; geophysical measurement technique; gravimetric moisture; hydrology; leaf water relations; moisture conditions; osmotic potential; potato leaf; radar remote sensing; radar scattering; relative water content; soil moisture; synthetic aperture radar; turgor pressure; vegetation canopy; vegetation mapping; water potential; Backscatter; Crops; Electromagnetic scattering; Frequency measurement; Moisture measurement; Permittivity measurement; Pressure measurement; Probes; Radar scattering; Stress;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.602547

Filename

602547