| Main Title |
Use of a Spectroradiometer to Study Aerial Photographs of Ozone-Treated Soybeans. |
| Author |
Edwards, G. J. ;
Cure., W. W. ;
|
| CORP Author |
Citrus Research and Education Center, Lake Alfred, FL. ;North Carolina State Univ. at Raleigh.;Corvallis Environmental Research Lab., OR. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/412; |
| Stock Number |
PB90-245838 |
| Additional Subjects |
Ozone ;
Soybean plants ;
Spectroradiometers ;
Aerial surveys ;
Remote sensing ;
Farm crops ;
Optical density ;
Plant growth ;
Reprints ;
Air pollution effects(Plants)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-245838 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
A scanning spectroradiometer was used to measure the optical densities of an aerial photograph of an experimental field in which soybeans were growing in response to different concentrations of ozone, an air pollutant. The plants were growing in 3 m diameter, 2.4 m high open-top exposure chambers. Correlation coefficients among the film densities, plant yield and visual estimates of non-green leaf area for the 16 test plots were highly significant (p<0.0); those with ozone treatment concentrations were significant (p<0.05). The early senescence induced by this form of environmental stress can thus be detected by film density differences, and these differences are well correlated with ground indicators of crop condition. (Copyright (c) 1989 Taylor & Francis Ltd.) |
| Supplementary Notes |
Pub. in International Jnl. of Remote Sensing, v10 n12 p1913-1918 1989. Prepared in cooperation with North Carolina State Univ. at Raleigh. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Use of a Spectroradiometer to Study Aerial Photographs of Ozone-Treated Soybeans. |
| Category Codes |
68A; 57H; 57C; 98G |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
024228382 |
| Origin |
NTIS |
| Type |
CAT |
