condition mean min max 12pM Fe,Midday 1.92817 1.92817 1.92817 12pM Fe,Midnight 0.4945205 0.0 0.989041 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 1.1359195714285715 0.0 2.44108 233pM Fe,Midnight 0.4002666666666667 0.0 1.2008 1160pM Fe,Midday 1.5301037142857143 0.0 4.62753 1160pM Fe,Midnight 10.68997425 0.0 22.8384 High carbon,Dark 6.312178666666666 0.0 37.172 High carbon,Light 3.0732253846153847 0.0 8.42841 Low carbon,Dark 6.26639 6.26639 6.26639 Phloroglucinol 86.71696666666666 56.4874 126.865 Silicon starvation,12h 0.548533 0.548533 0.548533