condition mean min max 12pM Fe,Midday 21.1055 21.1055 21.1055 12pM Fe,Midnight 14.4146 13.718 15.1112 58pM Fe,Midday 17.897 17.897 17.897 58pM Fe,Midnight 22.31022857142857 10.2055 78.1532 233pM Fe,Midnight 8.801926666666667 8.21489 9.60504 1160pM Fe,Midday 13.21492857142857 11.6335 15.5597 1160pM Fe,Midnight 9.843016666666667 3.63695 14.1399 High carbon,Dark 10.290144666666666 4.31427 18.1726 High carbon,Light 13.131420769230768 3.27584 26.4127 Low carbon,Dark 6.43042 6.43042 6.43042 Phloroglucinol 14.6816 14.0383 15.1281 Silicon starvation,12h 40.6533 40.6533 40.6533