condition mean min max 12pM Fe,Midday 33.9516 33.9516 33.9516 12pM Fe,Midnight 40.9499 39.8904 42.0094 58pM Fe,Midday 25.4554 25.4554 25.4554 58pM Fe,Midnight 38.479685714285715 27.2424 92.1325 233pM Fe,Midnight 27.723533333333332 25.545 29.7026 1160pM Fe,Midday 20.054942857142855 17.3573 23.3925 1160pM Fe,Midnight 5.320188333333333 1.20452 11.4619 High carbon,Dark 14.511484666666666 4.97792 31.857 High carbon,Light 8.558875384615385 1.22063 22.2058 Low carbon,Dark 16.0036 16.0036 16.0036 Phloroglucinol 11.04041 8.28263 12.7134 Silicon starvation,12h 28.0176 28.0176 28.0176