condition mean min max 12pM Fe,Midday 25.1404 25.1404 25.1404 12pM Fe,Midnight 17.20355 16.695 17.7121 58pM Fe,Midday 20.6373 20.6373 20.6373 58pM Fe,Midnight 17.755357142857143 0.0 36.5841 233pM Fe,Midnight 20.975266666666666 19.152 23.5899 1160pM Fe,Midday 19.26737142857143 14.5254 27.7381 1160pM Fe,Midnight 31.49395 21.758 39.3082 High carbon,Dark 17.611879333333334 6.3466 42.2463 High carbon,Light 9.047433846153845 2.5494 18.1061 Low carbon,Dark 5.41415 5.41415 5.41415 Phloroglucinol 12.945453333333333 9.00036 15.1842 Silicon starvation,12h 25.6785 25.6785 25.6785