condition mean min max 12pM Fe,Midday 5.3537 5.3537 5.3537 12pM Fe,Midnight 5.423135 4.83322 6.01305 58pM Fe,Midday 2.27386 2.27386 2.27386 58pM Fe,Midnight 4.159588571428571 0.0 5.95844 233pM Fe,Midnight 1.5153633333333334 1.08475 2.13384 1160pM Fe,Midday 3.4027814285714286 2.56974 4.17229 1160pM Fe,Midnight 0.6699043333333333 0.0 1.7445 High carbon,Dark 2.864536 0.0 6.47278 High carbon,Light 2.0807350000000002 0.0 7.15901 Low carbon,Dark 4.17579 4.17579 4.17579 Phloroglucinol 4.70796 4.33244 4.96057 Silicon starvation,12h 5.72665 5.72665 5.72665