| Abstract: | Soybean (Glycine max) plants were grown in hydroponic solutions treated with high concentrations of either arsenic or selenium. Spectral reflectance changes in arsenic-dosed plants included a shift to shorter wavelengths in the long-wavelength edge of the chlorophyll absorption band centered at 680 nm (the red edge) and higher reflectance in the 550-650 nm region. These results are consistent with vegetation reflectance anomalies observed in previous greenhouse experiments and in airborne radiometer studies. The selenium-dosed plants contrast, exhibited a shift to longer wavelengths of the red edge and lower reflectance between 550 nm and 650 wh when compared with control plants. Morphological effects of arsenic uptake included lower overall biomass, stunted and discolored roots, and smaller leaves oriented more vertically than leaves of control plants. Selenium-dosed plants also displayed morphological changes, but root and leaf biomass were less affected than were those of arsenic-dosed plants when compared to control plants. ?? 1989. |
| Genre: | Article |
| ProdID: | 70015335 |
| Citation Author: | Milton, N. M.; Ager, C. M.; Eiswerth, B. A.; Power, M. S. |
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| Citation End Page: | 269 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Remote Sensing of Environment |
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| Citation Number Of Pages: | 7 |
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| Citation Search Results Text: | Arsenic- and selenium-induced changes in spectral reflectance and morphology of soybean plants; 1989; Article; Journal; Remote Sensing of Environment; Milton, N. M.; Ager, C. M.; Eiswerth, B. A.; Power, M. S. |
| Citation Start Page: | 263 |
| Citation Volume: | 30 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Arsenic- and selenium-induced changes in spectral reflectance and morphology of soybean plants; 1989; Article; Journal; Remote Sensing of Environment; Milton, N. M.; Ager, C. M.; Eiswerth, B. A.; Power, M. S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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