condition mean min max 12pM Fe,Midday 38.2153 38.2153 38.2153 12pM Fe,Midnight 36.864149999999995 36.1393 37.589 58pM Fe,Midday 57.6893 57.6893 57.6893 58pM Fe,Midnight 47.43365714285714 30.116 111.964 233pM Fe,Midnight 31.743866666666666 31.0441 32.15 1160pM Fe,Midday 28.547642857142858 26.7617 30.7304 1160pM Fe,Midnight 17.126625 12.6362 20.837 High carbon,Dark 24.817492 9.89908 35.9419 High carbon,Light 23.33036076923077 2.71952 45.298 Low carbon,Dark 27.4666 27.4666 27.4666 Phloroglucinol 25.6471 19.7797 34.3333 Silicon starvation,12h 57.4047 57.4047 57.4047