condition mean min max 12pM Fe,Midday 28.6119 28.6119 28.6119 12pM Fe,Midnight 24.3084 23.1778 25.439 58pM Fe,Midday 21.4974 21.4974 21.4974 58pM Fe,Midnight 17.821242857142856 13.552 35.6883 233pM Fe,Midnight 13.018266666666667 12.2542 13.7939 1160pM Fe,Midday 17.45017142857143 14.4474 18.9026 1160pM Fe,Midnight 7.260535833333333 5.26756 9.90359 High carbon,Dark 15.356786 1.97549 34.2099 High carbon,Light 9.803766153846153 1.4083 23.7908 Low carbon,Dark 7.66732 7.66732 7.66732 Phloroglucinol 24.501166666666666 18.8097 29.3867 Silicon starvation,12h 21.5344 21.5344 21.5344