Dry Weight (Biomass) References
Sorghum halapense (L.) Pers. [Johnsongrass]
Carter, D.R. and Peterson, K.M. 1983. Effects of a CO2-enriched atmosphere on the growth and competitive interaction of a C3 and a C4 grass. Oecologia 58: 188-193.
Patterson, D.T., Flint, E.P. and Beyers, J.L. 1984. Effects of CO2 enrichment on competition between a C4 weed and a C3 crop. Weed Science 32: 101-105.
Ziska, L.H. and Bunce, J.A. 1997. Influence of increasing carbon dioxide concentration on the photosynthetic and growth stimulation of selected C4 crops and weeds. Photosynthesis Research 54: 199-208.