Competition for Light<BR>Yellow nutsedge appears to be more tolerant of shade than Purple nutsedge <BR>Yellow nutsedge biomass in 30% shade was not different than in full sunlight. <BR>Purple nutsedge biomass was reduced in a linear with light. <BR>Yellow nutsedge has a lower light compensation point (84 µmol m-2 s-1) than purple nutsedge (127 µmol m-2 s-1).<BR>Santos et al. 1997<BR>Jordan-Molero and Stoller 1978<BR>