condition mean min max 12pM Fe,Midday 31.4836 31.4836 31.4836 12pM Fe,Midnight 22.6929 22.3394 23.0464 58pM Fe,Midday 29.0189 29.0189 29.0189 58pM Fe,Midnight 21.83307142857143 0.0 29.4788 233pM Fe,Midnight 40.1522 37.7843 42.3875 1160pM Fe,Midday 16.522771428571428 15.0492 20.3099 1160pM Fe,Midnight 28.826066666666666 10.4892 60.961 High carbon,Dark 49.978806666666664 18.8021 80.4553 High carbon,Light 43.12906230769231 1.61018 96.1493 Low carbon,Dark 24.514 24.514 24.514 Phloroglucinol 20.1579 14.2027 25.3798 Silicon starvation,12h 20.3389 20.3389 20.3389