condition mean min max 12pM Fe,Midday 25.1775 25.1775 25.1775 12pM Fe,Midnight 27.0108 26.8859 27.1357 58pM Fe,Midday 20.4554 20.4554 20.4554 58pM Fe,Midnight 28.051971428571427 22.6989 40.683 233pM Fe,Midnight 17.120966666666668 16.5216 17.6648 1160pM Fe,Midday 17.418742857142856 14.9773 18.86 1160pM Fe,Midnight 15.670641666666667 10.7033 21.9597 High carbon,Dark 16.292782 3.44631 26.3808 High carbon,Light 14.723954615384615 2.56022 24.5019 Low carbon,Dark 17.4808 17.4808 17.4808 Phloroglucinol 25.959633333333333 19.2191 30.8762 Silicon starvation,12h 36.7897 36.7897 36.7897