condition mean min max 12pM Fe,Midday 40.2053 40.2053 40.2053 12pM Fe,Midnight 35.81685 31.5214 40.1123 58pM Fe,Midday 36.7325 36.7325 36.7325 58pM Fe,Midnight 23.626057142857142 0.0 31.1748 233pM Fe,Midnight 25.70253333333333 23.7074 28.7687 1160pM Fe,Midday 24.464528571428573 22.5552 26.9188 1160pM Fe,Midnight 18.576341666666664 13.6725 24.8251 High carbon,Dark 28.748748 5.18072 60.9967 High carbon,Light 21.298523846153845 6.19888 43.5529 Low carbon,Dark 40.899 40.899 40.899 Phloroglucinol 12.213933333333333 11.1594 13.8073 Silicon starvation,12h 61.9314 61.9314 61.9314