condition mean min max 12pM Fe,Midday 13.4757 13.4757 13.4757 12pM Fe,Midnight 10.140435 7.54067 12.7402 58pM Fe,Midday 9.75595 9.75595 9.75595 58pM Fe,Midnight 7.202955714285714 0.0 14.217 233pM Fe,Midnight 3.2563133333333334 2.861 3.49058 1160pM Fe,Midday 4.116385714285714 0.74588 6.02108 1160pM Fe,Midnight 4.421910333333333 0.222042 8.7776 High carbon,Dark 10.634063333333334 4.38297 18.8264 High carbon,Light 9.255612307692308 2.52424 18.733 Low carbon,Dark 5.97205 5.97205 5.97205 Phloroglucinol 225.437 166.006 305.06 Silicon starvation,12h 3.65937 3.65937 3.65937