condition mean min max 12pM Fe,Midday 0.805317 0.805317 0.805317 12pM Fe,Midnight 1.2524685 0.550777 1.95416 58pM Fe,Midday 0.237527 0.237527 0.237527 58pM Fe,Midnight 0.9163397142857143 0.0 1.81252 233pM Fe,Midnight 0.39447666666666664 0.166404 0.84985 1160pM Fe,Midday 0.48284628571428573 0.176853 1.05548 1160pM Fe,Midnight 0.7349631666666667 0.0 2.27572 High carbon,Dark 3.063721666666667 0.480204 8.2003 High carbon,Light 1.1164706153846153 0.0 3.07102 Low carbon,Dark 0.872407 0.872407 0.872407 Phloroglucinol 1.4176843333333333 0.504633 2.56043 Silicon starvation,12h 0.763667 0.763667 0.763667