condition mean min max 12pM Fe,Midday 38.6952 38.6952 38.6952 12pM Fe,Midnight 36.77065 33.6905 39.8508 58pM Fe,Midday 37.4244 37.4244 37.4244 58pM Fe,Midnight 32.278957142857145 26.7016 53.3164 233pM Fe,Midnight 33.4885 31.7573 35.5169 1160pM Fe,Midday 28.762357142857145 25.5801 34.979 1160pM Fe,Midnight 29.793033333333334 21.962 38.8188 High carbon,Dark 41.658226666666664 21.211 79.8708 High carbon,Light 37.539346153846154 15.3586 57.4742 Low carbon,Dark 25.1026 25.1026 25.1026 Phloroglucinol 88.72743333333334 68.8402 102.796 Silicon starvation,12h 60.7583 60.7583 60.7583