condition mean min max 12pM Fe,Midday 41.4604 41.4604 41.4604 12pM Fe,Midnight 33.57965 31.757 35.4023 58pM Fe,Midday 39.3222 39.3222 39.3222 58pM Fe,Midnight 32.13878571428572 0.0 46.081 233pM Fe,Midnight 36.530633333333334 34.1693 38.167 1160pM Fe,Midday 33.10142857142857 28.5998 40.4 1160pM Fe,Midnight 30.906633333333335 24.5772 35.8756 High carbon,Dark 31.297628666666668 4.76843 97.9778 High carbon,Light 31.649983076923075 1.77293 63.3193 Low carbon,Dark 27.4327 27.4327 27.4327 Phloroglucinol 23.63286666666667 19.1351 28.2525 Silicon starvation,12h 71.7578 71.7578 71.7578