Growth rate, fluorescence and stomatal conductance, in zea was examined to determine the effects of artificial auxin, 2-4-d, on common crop plants. We measured florescence, growth rate, and stomatal conductance. Low concentrations of 2,4-D increased light-adapted fluorescence, anthocyanin levels and height of zea maize. A high concentration of 2,4-D increased anthocyanin levels, but also caused decreased fluorescence and height and spindliness to occur. It appears 2,4-D is only beneficial to monocot crop plants in low quantities. We cannot accurately comment on the accuracy of our data, however, due to several potential sources of error.
Thompson, Caitlin; Patrick, Lori; Osbourne, Acacia; and Brock, Katrina, "Effects of 2, 4-D on Zea maize Physiology" (2011). Pepperdine University, Featured Research. Paper 33.