condition mean min max 12pM Fe,Midday 57.2869 57.2869 57.2869 12pM Fe,Midnight 30.0577 29.3187 30.7967 58pM Fe,Midday 31.238 31.238 31.238 58pM Fe,Midnight 18.958385714285715 0.0 25.1865 233pM Fe,Midnight 15.011266666666666 14.5094 15.7041 1160pM Fe,Midday 30.798685714285714 27.6035 32.8649 1160pM Fe,Midnight 24.9546825 7.5003 43.8066 High carbon,Dark 22.292970666666665 5.78325 59.2327 High carbon,Light 26.86927153846154 3.34972 78.6202 Low carbon,Dark 20.1728 20.1728 20.1728 Phloroglucinol 63.27683333333333 53.038 83.473 Silicon starvation,12h 67.0284 67.0284 67.0284