Flag Leaf Photosynthesis and Stomatal Function of Grain Sorghum as Influenced by Changing Photosynthetic Photon Flux Densities

Figure 6

Mean at Growth Stages 6 and 7 of grain sorghum in response to decreasing PPFD grown on a Tunica clay soil at three levels of added N-fertilizer near Elizabeth, MS. At GS6 means are of three plants, two hybrids (83P17 and DKS54-03), two years (2014 and 2015), and three N-fertility levels (0, 112, and 224 kg N ha⁻¹). At GS7 years are reported separately. Mean error bars set at .