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United States Department of Agriculture

Agricultural Research Service

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AFSRC Picture of the Week, October 2, 2006
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Dr. Foster freezes plant samples in liquid nitrogen

An understanding of environmental and management effects of plant characteristics requires quick suspension of biochemical processes in the plants. Dr. Joyce Foster, Research Chemist, immediately freezes plant samples in liquid nitrogen as they are harvested.

Photo by K. Dale Ritchey

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Last Modified: 10/4/2006
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