condition mean min max 12pM Fe,Midday 27.5047 27.5047 27.5047 12pM Fe,Midnight 25.61505 22.1536 29.0765 58pM Fe,Midday 22.3261 22.3261 22.3261 58pM Fe,Midnight 16.459042857142858 0.0 21.9476 233pM Fe,Midnight 21.70306666666667 19.5864 23.3578 1160pM Fe,Midday 15.157471428571428 14.3003 15.9752 1160pM Fe,Midnight 9.750500833333334 4.93008 16.3152 High carbon,Dark 17.697254666666666 2.52192 28.4449 High carbon,Light 13.37768 1.84748 22.4602 Low carbon,Dark 12.1893 12.1893 12.1893 Phloroglucinol 10.06418 7.47296 13.3186 Silicon starvation,12h 19.4 19.4 19.4