condition mean min max 12pM Fe,Midday 31.7638 31.7638 31.7638 12pM Fe,Midnight 164.0675 150.403 177.732 58pM Fe,Midday 19.4581 19.4581 19.4581 58pM Fe,Midnight 239.68085714285715 205.142 330.889 233pM Fe,Midnight 331.816 330.587 333.14 1160pM Fe,Midday 14.873982857142858 9.35448 26.4074 1160pM Fe,Midnight 209.63158333333334 123.651 301.523 High carbon,Dark 348.5211933333333 44.5347 748.878 High carbon,Light 216.13338307692308 5.22928 1154.93 Low carbon,Dark 189.066 189.066 189.066 Phloroglucinol 68.92656666666667 18.4303 102.947 Silicon starvation,12h 84.7692 84.7692 84.7692