condition mean min max 12pM Fe,Midday 37.3754 37.3754 37.3754 12pM Fe,Midnight 32.078649999999996 29.2609 34.8964 58pM Fe,Midday 31.2135 31.2135 31.2135 58pM Fe,Midnight 27.897157142857143 0.0 40.5266 233pM Fe,Midnight 15.311733333333333 14.3587 16.738 1160pM Fe,Midday 19.254128571428573 16.3236 22.3383 1160pM Fe,Midnight 10.16536 6.34163 11.874 High carbon,Dark 12.822028 1.33118 25.7615 High carbon,Light 8.69599076923077 1.19958 20.832 Low carbon,Dark 15.6952 15.6952 15.6952 Phloroglucinol 6.732566666666667 5.26301 8.29721 Silicon starvation,12h 16.9645 16.9645 16.9645