Photosynthesis (Net CO2 Exchange Rate) References
Ambrosia artemisiifolia L. [Annual Ragweed]
Hirose, T., Ackerly, D.D., Traw, M.B. and Bazzaz, F.A. 1996. Effects of CO2 elevation on canopy development in the stands of two co-occurring annuals. Oecologia 108: 215-223.
Hirose, T., Ackerly, D.D., Traw, M.B., Ramseier, D. and Bazzaz, F.A. 1997. CO2, elevation, canopy photosynthesis, and optimal leaf area index. Ecology 78: 2339-2350.