Figure 4 in Seedbank Persistence of Palmer Amaranth (Amoronthus polmeri) and Waterhemp (Amoronthus tuberculotus) across Diverse Geographical Regions in the United States

Figure 4. Monthly soil temperature (averaged over a 15-min concurrent recording period on a daily basis for the entire experimental period) at the top and at 15 cm below the soil surface (left y-axis) and monthly soil volumetric water content at 15 cm below soil surface (right y-axis) for each of the seven sites where the seed material of Amoronthus polmeri and Amoronthus tuberculotus was exposed to burial conditions during 2014–2016. Data presented for Missouri include only two experimental years (2015 and 2016).