condition mean min max 12pM Fe,Midday 27.402 27.402 27.402 12pM Fe,Midnight 24.0164 23.2286 24.8042 58pM Fe,Midday 23.8391 23.8391 23.8391 58pM Fe,Midnight 21.784514285714284 0.0 27.0145 233pM Fe,Midnight 25.724166666666665 24.2353 26.6929 1160pM Fe,Midday 21.347885714285713 17.7062 23.5252 1160pM Fe,Midnight 15.433375 10.4319 21.9984 High carbon,Dark 16.611420666666668 4.37953 31.4397 High carbon,Light 14.851338461538461 3.28881 29.8234 Low carbon,Dark 22.0765 22.0765 22.0765 Phloroglucinol 14.043966666666666 12.0832 16.6295 Silicon starvation,12h 26.5962 26.5962 26.5962