Copy of `CDIAC - Atmosphere Glossary`
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CDIAC - Atmosphere Glossary
Category: Meteorology and astronomy > Atmosphere
Date & country: 13/09/2007, USA
Words: 301
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C4 plantsPlants (e.g., maize and sorghum) whose carbon fixation products have four carbon atoms per molecule. Compared with C3 plants, C4 plants show little photosynthetic response to increased CO2 concentrations above 340 ppm but show a decrease in stomatal conductance, which results in an increase in photosynthetic water-use efficiency.
