condition mean min max 12pM Fe,Midday 29.9176 29.9176 29.9176 12pM Fe,Midnight 37.99055 37.7305 38.2506 58pM Fe,Midday 23.6573 23.6573 23.6573 58pM Fe,Midnight 26.29162857142857 19.842 31.031 233pM Fe,Midnight 27.3463 26.6963 28.1647 1160pM Fe,Midday 22.511785714285715 20.4955 26.9179 1160pM Fe,Midnight 14.8734 12.6204 17.1957 High carbon,Dark 18.467326666666665 5.89107 37.1291 High carbon,Light 10.011149230769231 1.33108 34.2549 Low carbon,Dark 13.9677 13.9677 13.9677 Phloroglucinol 20.4515 16.2679 25.7448 Silicon starvation,12h 24.136 24.136 24.136