condition mean min max 12pM Fe,Midday 23.4408 23.4408 23.4408 12pM Fe,Midnight 56.92025 44.6084 69.2321 58pM Fe,Midday 18.7711 18.7711 18.7711 58pM Fe,Midnight 57.39552857142857 21.4129 124.993 233pM Fe,Midnight 26.56093333333333 24.7751 27.755 1160pM Fe,Midday 8.090342857142858 5.54171 10.5014 1160pM Fe,Midnight 29.634758333333334 24.2307 34.8122 High carbon,Dark 37.632956 5.01554 54.9731 High carbon,Light 15.009573076923077 8.41795 21.4649 Low carbon,Dark 30.8532 30.8532 30.8532 Phloroglucinol 36.09146666666667 31.6401 39.7659 Silicon starvation,12h 27.8745 27.8745 27.8745