condition mean min max 12pM Fe,Midday 29.6685 29.6685 29.6685 12pM Fe,Midnight 16.68895 15.8141 17.5638 58pM Fe,Midday 27.9458 27.9458 27.9458 58pM Fe,Midnight 19.61622857142857 15.3474 37.802 233pM Fe,Midnight 22.43476666666667 20.7283 23.768 1160pM Fe,Midday 17.80292857142857 16.4415 20.3169 1160pM Fe,Midnight 23.142108333333333 14.3627 32.1779 High carbon,Dark 27.962006666666667 17.3991 44.7348 High carbon,Light 23.563761538461538 1.0442 55.9671 Low carbon,Dark 16.0701 16.0701 16.0701 Phloroglucinol 6.09291 2.75641 8.25915 Silicon starvation,12h 30.3122 30.3122 30.3122