condition mean min max 12pM Fe,Midday 13.8505 13.8505 13.8505 12pM Fe,Midnight 10.26631 9.60262 10.93 58pM Fe,Midday 5.23741 5.23741 5.23741 58pM Fe,Midnight 6.716835714285715 0.0 9.66344 233pM Fe,Midnight 4.590493333333333 4.03608 5.01319 1160pM Fe,Midday 6.191117142857143 4.67947 7.29211 1160pM Fe,Midnight 6.067675 2.80539 9.90323 High carbon,Dark 4.598085333333334 1.48237 9.87577 High carbon,Light 5.003320076923077 0.418151 9.74742 Low carbon,Dark 5.00144 5.00144 5.00144 Phloroglucinol 12.5295 11.0494 14.8187 Silicon starvation,12h 7.47635 7.47635 7.47635