condition mean min max 12pM Fe,Midday 5.40981 5.40981 5.40981 12pM Fe,Midnight 4.74783 4.50079 4.99487 58pM Fe,Midday 3.82948 3.82948 3.82948 58pM Fe,Midnight 7.48751 0.0 11.7073 233pM Fe,Midnight 8.555936666666668 6.85076 10.7313 1160pM Fe,Midday 12.048505714285714 7.35724 15.8101 1160pM Fe,Midnight 7.451845 4.57192 9.80525 High carbon,Dark 10.384455333333333 2.8338 28.5758 High carbon,Light 13.299058076923076 0.0 28.5794 Low carbon,Dark 8.79074 8.79074 8.79074 Phloroglucinol 1.9565866666666665 1.10571 2.71194 Silicon starvation,12h 9.23404 9.23404 9.23404