condition mean min max 12pM Fe,Midday 49.9226 49.9226 49.9226 12pM Fe,Midnight 39.01005 37.902 40.1181 58pM Fe,Midday 35.3265 35.3265 35.3265 58pM Fe,Midnight 28.59242857142857 25.2085 32.14 233pM Fe,Midnight 23.420733333333335 22.8094 23.7376 1160pM Fe,Midday 30.220042857142857 28.7651 31.853 1160pM Fe,Midnight 10.593471666666666 5.98723 19.3684 High carbon,Dark 17.654971333333332 6.97697 41.411 High carbon,Light 12.43830076923077 3.45807 36.1721 Low carbon,Dark 12.4449 12.4449 12.4449 Phloroglucinol 15.09609 9.02047 23.625 Silicon starvation,12h 19.7701 19.7701 19.7701