condition mean min max 12pM Fe,Midday 15.8743 15.8743 15.8743 12pM Fe,Midnight 37.2751 36.7676 37.7826 58pM Fe,Midday 17.0872 17.0872 17.0872 58pM Fe,Midnight 40.521657142857144 32.0617 58.1761 233pM Fe,Midnight 65.91796666666666 64.2451 66.8579 1160pM Fe,Midday 4.477022857142857 3.79668 5.14177 1160pM Fe,Midnight 40.868875 25.5869 63.7537 High carbon,Dark 47.77014666666667 19.9721 82.4417 High carbon,Light 28.41270153846154 9.64192 47.2823 Low carbon,Dark 40.4211 40.4211 40.4211 Phloroglucinol 35.0052 28.5561 42.9261 Silicon starvation,12h 87.3399 87.3399 87.3399