condition mean min max 12pM Fe,Midday 11.2129 11.2129 11.2129 12pM Fe,Midnight 9.809305 9.46231 10.1563 58pM Fe,Midday 7.36127 7.36127 7.36127 58pM Fe,Midnight 6.71948 0.0 8.71732 233pM Fe,Midnight 5.128743333333333 4.70864 5.49661 1160pM Fe,Midday 5.510874285714285 4.83549 6.07665 1160pM Fe,Midnight 5.5146049999999995 3.50974 8.82556 High carbon,Dark 6.886714133333333 0.573282 16.7637 High carbon,Light 6.132589692307692 0.638825 12.287 Low carbon,Dark 7.64088 7.64088 7.64088 Phloroglucinol 3.9654133333333337 2.21788 5.14526 Silicon starvation,12h 28.9149 28.9149 28.9149