condition mean min max 12pM Fe,Midday 20.4369 20.4369 20.4369 12pM Fe,Midnight 38.16645 35.3431 40.9898 58pM Fe,Midday 23.7728 23.7728 23.7728 58pM Fe,Midnight 27.7835 0.0 35.2732 233pM Fe,Midnight 45.88466666666667 44.6366 47.9706 1160pM Fe,Midday 21.530485714285714 18.8066 27.5337 1160pM Fe,Midnight 38.74214166666667 33.1747 41.7865 High carbon,Dark 30.278299999999998 16.439 43.126 High carbon,Light 29.23519230769231 10.2741 63.3933 Low carbon,Dark 30.9705 30.9705 30.9705 Phloroglucinol 38.75376666666667 33.7924 47.7719 Silicon starvation,12h 48.3411 48.3411 48.3411