condition mean min max 12pM Fe,Midday 36.4125 36.4125 36.4125 12pM Fe,Midnight 37.7171 32.7426 42.6916 58pM Fe,Midday 31.2505 31.2505 31.2505 58pM Fe,Midnight 29.67902857142857 0.0 37.035 233pM Fe,Midnight 26.9421 25.9663 28.6029 1160pM Fe,Midday 28.3112 22.606 32.6712 1160pM Fe,Midnight 14.582595 8.39417 20.8413 High carbon,Dark 26.26095 5.20705 48.2125 High carbon,Light 24.17265923076923 4.51295 44.1869 Low carbon,Dark 24.0235 24.0235 24.0235 Phloroglucinol 26.49853333333333 23.1938 32.4554 Silicon starvation,12h 30.2196 30.2196 30.2196