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United States Department of Agriculture

Agricultural Research Service

Image Number D1547-1

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Image Number D1547-1

Plant physiologists Kent Burkey (left) and Fitzgerald Booker collect soybean leaf samples in open-top field chambers for analysis of the effects of elevated carbon dioxide and ozone on plant chemistry.


Photo by Peggy Greb.

640 pixels wide: (d1547-1.jpg)

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Last Modified: 11/19/2009
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