![]() | Advances in Carbon Dioxide Effects Research L.H. Allen is a researcher at University of Florida. M.B. Kirkham is a distinguished professor of crop physiology at Kansas State University. |
![hidden image for function call](https://upload.wikimedia.org/wikipedia/commons/c/ca/1x1.png)
![]() | Advances in Carbon Dioxide Effects Research L.H. Allen is a researcher at University of Florida. M.B. Kirkham is a distinguished professor of crop physiology at Kansas State University. |