condition mean min max 12pM Fe,Midday 18.3281 18.3281 18.3281 12pM Fe,Midnight 11.83285 11.6646 12.0011 58pM Fe,Midday 15.0163 15.0163 15.0163 58pM Fe,Midnight 16.126227142857143 7.08356 60.3278 233pM Fe,Midnight 10.258583333333334 9.67835 10.6744 1160pM Fe,Midday 9.829272857142858 7.93817 12.3227 1160pM Fe,Midnight 6.149841666666667 1.56948 15.0104 High carbon,Dark 15.855679333333333 4.84148 28.1996 High carbon,Light 12.129057692307692 2.52868 19.7968 Low carbon,Dark 9.65175 9.65175 9.65175 Phloroglucinol 8.972103333333333 4.07705 12.9495 Silicon starvation,12h 24.8151 24.8151 24.8151