condition mean min max 12pM Fe,Midday 44.4539 44.4539 44.4539 12pM Fe,Midnight 30.8857 26.5186 35.2528 58pM Fe,Midday 47.0571 47.0571 47.0571 58pM Fe,Midnight 25.17572857142857 18.6447 48.4748 233pM Fe,Midnight 22.46046666666667 20.3718 23.5712 1160pM Fe,Midday 33.49494285714286 29.6719 37.7482 1160pM Fe,Midnight 28.413183333333333 11.6893 39.9352 High carbon,Dark 29.535538666666667 5.71438 64.2974 High carbon,Light 36.69652923076923 5.61946 63.4816 Low carbon,Dark 26.1468 26.1468 26.1468 Phloroglucinol 32.07116666666667 26.0129 35.8026 Silicon starvation,12h 85.4993 85.4993 85.4993