condition mean min max 12pM Fe,Midday 36.1707 36.1707 36.1707 12pM Fe,Midnight 48.18885 45.0586 51.3191 58pM Fe,Midday 28.805 28.805 28.805 58pM Fe,Midnight 58.49087142857143 44.9875 91.8442 233pM Fe,Midnight 54.1089 53.3302 54.9341 1160pM Fe,Midday 18.512485714285713 15.1012 29.4471 1160pM Fe,Midnight 54.59545 32.2203 92.7974 High carbon,Dark 68.155 41.1469 121.381 High carbon,Light 58.08063846153846 38.0024 89.0603 Low carbon,Dark 57.9364 57.9364 57.9364 Phloroglucinol 22.3675 12.414 35.9085 Silicon starvation,12h 51.009 51.009 51.009