condition mean min max 12pM Fe,Midday 27.5912 27.5912 27.5912 12pM Fe,Midnight 25.36855 24.6258 26.1113 58pM Fe,Midday 21.1181 21.1181 21.1181 58pM Fe,Midnight 17.049 0.0 22.3558 233pM Fe,Midnight 14.4847 13.6267 15.3078 1160pM Fe,Midday 16.362928571428572 15.7919 17.2237 1160pM Fe,Midnight 9.180910833333334 7.11192 11.5021 High carbon,Dark 21.598547333333332 8.88431 40.8878 High carbon,Light 19.352677692307694 7.14706 33.3679 Low carbon,Dark 12.7779 12.7779 12.7779 Phloroglucinol 31.205433333333332 26.0205 34.8874 Silicon starvation,12h 21.0361 21.0361 21.0361