condition mean min max 12pM Fe,Midday 42.8891 42.8891 42.8891 12pM Fe,Midnight 45.109899999999996 43.0498 47.17 58pM Fe,Midday 41.7726 41.7726 41.7726 58pM Fe,Midnight 31.3309 0.0 40.2718 233pM Fe,Midnight 25.653299999999998 25.0074 26.3955 1160pM Fe,Midday 31.64995714285714 28.9201 33.97 1160pM Fe,Midnight 32.006841666666666 18.3435 47.084 High carbon,Dark 38.41282066666667 9.38341 85.5818 High carbon,Light 26.431216153846155 5.4495 58.4461 Low carbon,Dark 24.5681 24.5681 24.5681 Phloroglucinol 60.277633333333334 51.2373 74.5184 Silicon starvation,12h 38.6227 38.6227 38.6227