condition mean min max 12pM Fe,Midday 9.40896 9.40896 9.40896 12pM Fe,Midnight 28.3408 27.724 28.9576 58pM Fe,Midday 4.16274 4.16274 4.16274 58pM Fe,Midnight 18.271071428571428 0.0 35.7356 233pM Fe,Midnight 37.548033333333336 30.7807 44.9237 1160pM Fe,Midday 1.7691471428571428 0.0 3.76353 1160pM Fe,Midnight 7.227600833333334 2.69634 15.7799 High carbon,Dark 22.455039333333332 2.61785 105.923 High carbon,Light 18.45454923076923 0.0 67.1916 Low carbon,Dark 17.8374 17.8374 17.8374 Phloroglucinol 22.183733333333333 12.7744 36.6826 Silicon starvation,12h 12.4913 12.4913 12.4913