condition mean min max 12pM Fe,Midday 24.6341 24.6341 24.6341 12pM Fe,Midnight 16.67495 15.037 18.3129 58pM Fe,Midday 15.9532 15.9532 15.9532 58pM Fe,Midnight 11.1347 0.0 15.0258 233pM Fe,Midnight 8.257413333333334 7.91193 8.78238 1160pM Fe,Midday 15.144685714285714 13.431 17.4836 1160pM Fe,Midnight 5.975204166666667 1.94127 8.88033 High carbon,Dark 13.165777333333333 5.29874 22.4539 High carbon,Light 8.921406153846153 2.29458 21.0053 Low carbon,Dark 8.99214 8.99214 8.99214 Phloroglucinol 10.086263333333333 8.23851 13.7428 Silicon starvation,12h 29.3524 29.3524 29.3524