condition mean min max 12pM Fe,Midday 31.352 31.352 31.352 12pM Fe,Midnight 26.4932 25.0017 27.9847 58pM Fe,Midday 23.3614 23.3614 23.3614 58pM Fe,Midnight 23.13062857142857 17.8108 45.1222 233pM Fe,Midnight 12.649033333333334 11.2518 13.6754 1160pM Fe,Midday 19.460528571428572 17.3578 21.0946 1160pM Fe,Midnight 8.424649166666667 5.96333 10.6244 High carbon,Dark 17.11492133333333 5.83414 39.8486 High carbon,Light 14.245484615384616 1.19562 27.5679 Low carbon,Dark 17.3257 17.3257 17.3257 Phloroglucinol 8.32871 5.96537 12.2799 Silicon starvation,12h 23.5436 23.5436 23.5436