condition mean min max 12pM Fe,Midday 37.3574 37.3574 37.3574 12pM Fe,Midnight 25.36105 25.053 25.6691 58pM Fe,Midday 23.4787 23.4787 23.4787 58pM Fe,Midnight 16.289785714285713 0.0 21.2276 233pM Fe,Midnight 14.5509 12.4085 17.6119 1160pM Fe,Midday 21.902185714285714 20.7015 24.1403 1160pM Fe,Midnight 9.907975 5.5132 15.1445 High carbon,Dark 15.925384666666666 6.24558 24.8548 High carbon,Light 17.92840846153846 2.32946 46.9795 Low carbon,Dark 11.1575 11.1575 11.1575 Phloroglucinol 25.60353333333333 18.8148 34.9663 Silicon starvation,12h 27.8768 27.8768 27.8768