condition mean min max 12pM Fe,Midday 73.69 73.69 73.69 12pM Fe,Midnight 36.1032 32.7641 39.4423 58pM Fe,Midday 50.0845 50.0845 50.0845 58pM Fe,Midnight 20.229285714285716 0.0 25.9993 233pM Fe,Midnight 16.702366666666666 13.9027 18.6228 1160pM Fe,Midday 28.435585714285715 23.4448 37.742 1160pM Fe,Midnight 21.804408333333335 10.0656 29.8398 High carbon,Dark 26.641333333333332 13.0712 47.3443 High carbon,Light 26.454776923076924 11.9458 45.7517 Low carbon,Dark 22.5604 22.5604 22.5604 Phloroglucinol 24.8074 20.4112 32.7424 Silicon starvation,12h 68.9674 68.9674 68.9674