Proximal sensing to detect symptoms associated with wheat curl mite-vectored viruses

The wheat curl mite (WCM) is microscopic, and therefore mite movement is difficult to track in the field. However, the virus complex it transmits causes observable and measurable changes to chlorophyll content and biomass. The ability to detect WCM (vectored viruses) with remote sensing was investig...

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Bibliographic Details
Published in:International journal of remote sensing 2013, Vol.34 (14), p.4951-4966
Main Authors: Stilwell, A. R, Hein, G. L, Zygielbaum, A. I, Rundquist, D. C
Format: Article
Language:English
Subjects:
Aceria tosichella
Animal, plant and microbial ecology
Applied geophysics
Biological and medical sciences
Biomass
chlorophyll
Chlorophylls
Correlation
Detection
Earth sciences
Earth, ocean, space
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General aspects. Techniques
Internal geophysics
mites
Remote sensing
Teledetection and vegetation maps
Triticum aestivum
Vegetation
Viruses
Wheat
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Summary:The wheat curl mite (WCM) is microscopic, and therefore mite movement is difficult to track in the field. However, the virus complex it transmits causes observable and measurable changes to chlorophyll content and biomass. The ability to detect WCM (vectored viruses) with remote sensing was investigated by comparing vegetation indices calculated from proximal sensing data to ground-reference data obtained in the field. Of the 10 vegetation indices evaluated, the red-edge position (REP) provided the best relationship with virus symptoms observed in wheat. There was a significant and high correlation between REP and relative chlorophyll values and biomass and a significant, but lower, correlation between REP and percentage virus infection.
ISSN:1366-5901
0143-1161
1366-5901
DOI:10.1080/01431161.2013.783945