condition mean min max 12pM Fe,Midday 219.91 219.91 219.91 12pM Fe,Midnight 204.0445 184.006 224.083 58pM Fe,Midday 241.529 241.529 241.529 58pM Fe,Midnight 121.89685714285714 0.0 154.847 233pM Fe,Midnight 92.73336666666667 90.7585 95.8934 1160pM Fe,Midday 119.456 107.243 134.879 1160pM Fe,Midnight 84.94134166666667 72.5443 100.94 High carbon,Dark 107.42675333333334 15.971 263.966 High carbon,Light 84.1399 15.5 177.526 Low carbon,Dark 148.332 148.332 148.332 Phloroglucinol 45.66063333333334 32.686 66.6337 Silicon starvation,12h 98.1415 98.1415 98.1415