condition mean min max 12pM Fe,Midday 36.7838 36.7838 36.7838 12pM Fe,Midnight 29.61065 28.861 30.3603 58pM Fe,Midday 33.338 33.338 33.338 58pM Fe,Midnight 17.199585714285714 0.0 23.0887 233pM Fe,Midnight 19.278966666666665 17.6887 20.5859 1160pM Fe,Midday 27.562 25.0559 29.1549 1160pM Fe,Midnight 15.1223 11.1266 18.4734 High carbon,Dark 18.035474666666666 6.92412 34.914 High carbon,Light 19.40313692307692 1.02361 49.0176 Low carbon,Dark 9.29466 9.29466 9.29466 Phloroglucinol 28.351466666666667 22.6147 36.0883 Silicon starvation,12h 28.4312 28.4312 28.4312