condition mean min max 12pM Fe,Midday 13.9442 13.9442 13.9442 12pM Fe,Midnight 5.83924 4.84722 6.83126 58pM Fe,Midday 12.4405 12.4405 12.4405 58pM Fe,Midnight 3.7378414285714285 0.0 4.98785 233pM Fe,Midnight 4.5834166666666665 3.86733 5.3109 1160pM Fe,Midday 7.616155714285714 6.81722 9.0491 1160pM Fe,Midnight 4.207941666666667 2.59004 5.36898 High carbon,Dark 5.739681333333333 2.88572 14.9773 High carbon,Light 6.227261076923077 0.16166 10.2995 Low carbon,Dark 4.49432 4.49432 4.49432 Phloroglucinol 6.681656666666667 5.18193 8.16011 Silicon starvation,12h 9.24521 9.24521 9.24521