condition mean min max 12pM Fe,Midday 3.8012 3.8012 3.8012 12pM Fe,Midnight 2.675845 2.51561 2.83608 58pM Fe,Midday 6.72696 6.72696 6.72696 58pM Fe,Midnight 2.035147142857143 0.0 3.4925 233pM Fe,Midnight 3.7492666666666667 3.21321 4.37608 1160pM Fe,Midday 6.8702757142857145 6.28577 7.7406 1160pM Fe,Midnight 8.741485833333332 1.25266 17.4638 High carbon,Dark 4.597600266666666 0.0 18.6217 High carbon,Light 4.3729566153846156 0.468096 12.3297 Low carbon,Dark 2.80764 2.80764 2.80764 Phloroglucinol 4.710863333333333 2.38193 6.3357 Silicon starvation,12h 4.91538 4.91538 4.91538