condition mean min max 12pM Fe,Midday 50.7667 50.7667 50.7667 12pM Fe,Midnight 48.564099999999996 45.0472 52.081 58pM Fe,Midday 44.3075 44.3075 44.3075 58pM Fe,Midnight 30.93998571428571 0.0 40.931 233pM Fe,Midnight 33.81923333333334 31.157 35.6084 1160pM Fe,Midday 20.368057142857143 17.4649 26.0402 1160pM Fe,Midnight 25.498325 22.1447 28.2316 High carbon,Dark 43.85870666666666 11.2592 107.703 High carbon,Light 31.371583076923077 9.341 74.1112 Low carbon,Dark 28.155 28.155 28.155 Phloroglucinol 33.35763333333333 28.2288 40.8438 Silicon starvation,12h 19.8151 19.8151 19.8151