condition mean min max 12pM Fe,Midday 39.8556 39.8556 39.8556 12pM Fe,Midnight 29.02055 24.1917 33.8494 58pM Fe,Midday 32.9151 32.9151 32.9151 58pM Fe,Midnight 17.3965 0.0 22.4172 233pM Fe,Midnight 16.744066666666665 15.5621 17.5815 1160pM Fe,Midday 30.757057142857143 26.6372 35.2291 1160pM Fe,Midnight 7.223505 4.36426 11.5581 High carbon,Dark 13.72946 1.05281 34.6774 High carbon,Light 12.407702153846154 0.782118 39.0454 Low carbon,Dark 12.4131 12.4131 12.4131 Phloroglucinol 7.758196666666667 4.57867 11.7666 Silicon starvation,12h 19.6531 19.6531 19.6531