condition mean min max 12pM Fe,Midday 139.272 139.272 139.272 12pM Fe,Midnight 61.531000000000006 61.1351 61.9269 58pM Fe,Midday 61.7915 61.7915 61.7915 58pM Fe,Midnight 48.1451 0.0 85.8446 233pM Fe,Midnight 37.52363333333333 32.0389 41.2191 1160pM Fe,Midday 24.0788 19.321 29.7865 1160pM Fe,Midnight 46.46378333333333 25.6741 83.2718 High carbon,Dark 34.63313733333333 3.87116 119.922 High carbon,Light 22.36479923076923 2.36263 54.6592 Low carbon,Dark 16.0277 16.0277 16.0277 Phloroglucinol 94.7241 75.4043 105.012 Silicon starvation,12h 9.87709 9.87709 9.87709