Sefcik, Lesley T <br/><br/>
Photosynthetic responses to understory shade and elevated carbon dioxide concentration in four northern hardwood tree species.  [electronic resource] 

 -  Tree physiology  Dec 2006 
 - 1589-99 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0829-318X 
<br/><br/><label>Standard No.: </label>10.1093/treephys/26.12.1589  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carbon Dioxide--physiology<br/>Darkness<br/>Ecosystem<br/>Magnoliopsida--physiology<br/>Nitrogen--metabolism<br/>Photosynthesis--physiology<br/>Plant Leaves--metabolism<br/>Seedlings--physiology<br/>Sunlight<br/>Trees--physiology