condition mean min max 12pM Fe,Midday 33.6509 33.6509 33.6509 12pM Fe,Midnight 47.3867 39.7247 55.0487 58pM Fe,Midday 50.5845 50.5845 50.5845 58pM Fe,Midnight 20.764185714285713 0.0 28.8201 233pM Fe,Midnight 18.331833333333332 17.1552 19.8239 1160pM Fe,Midday 21.206614285714288 18.5659 25.4597 1160pM Fe,Midnight 20.72 12.3397 26.3526 High carbon,Dark 17.682408 0.0 56.5504 High carbon,Light 13.609344076923078 0.637026 39.7325 Low carbon,Dark 28.0797 28.0797 28.0797 Phloroglucinol 5.042036666666667 2.13569 10.7108 Silicon starvation,12h 0.813164 0.813164 0.813164