Interaction between SO2 fumigation and drought stress on growth, photosynthesis and symbiotic nitrogen fixation in soybean, studies in an Open-top chamber facility / E. Heyneke
Thesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2008.
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North-West University
2009
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Online Access: | http://hdl.handle.net/10394/2098 |