condition mean min max 12pM Fe,Midday 20.7396 20.7396 20.7396 12pM Fe,Midnight 25.297 22.4113 28.1827 58pM Fe,Midday 11.7449 11.7449 11.7449 58pM Fe,Midnight 15.156785714285714 0.0 19.6049 233pM Fe,Midnight 13.7107 12.6066 15.1548 1160pM Fe,Midday 7.421964285714286 6.73456 9.29122 1160pM Fe,Midnight 5.9560949999999995 2.57068 10.649 High carbon,Dark 13.484793333333334 4.38279 23.8745 High carbon,Light 7.374652538461539 0.749163 15.7316 Low carbon,Dark 14.3791 14.3791 14.3791 Phloroglucinol 7.64983 5.71823 11.0141 Silicon starvation,12h 17.307 17.307 17.307