condition mean min max 12pM Fe,Midday 57.3813 57.3813 57.3813 12pM Fe,Midnight 40.792100000000005 35.3644 46.2198 58pM Fe,Midday 53.4811 53.4811 53.4811 58pM Fe,Midnight 30.9351 0.0 50.1248 233pM Fe,Midnight 30.229033333333334 28.6811 33.0313 1160pM Fe,Midday 72.82037142857143 62.1278 88.695 1160pM Fe,Midnight 19.962475 12.2991 29.5327 High carbon,Dark 42.2908 30.048 72.2408 High carbon,Light 78.97023076923077 35.0172 176.747 Low carbon,Dark 39.9588 39.9588 39.9588 Phloroglucinol 18.0933 14.8032 23.0844 Silicon starvation,12h 192.795 192.795 192.795