condition mean min max 12pM Fe,Midday 43.0013 43.0013 43.0013 12pM Fe,Midnight 37.05025 31.5104 42.5901 58pM Fe,Midday 42.5792 42.5792 42.5792 58pM Fe,Midnight 24.76844285714286 0.0 36.6146 233pM Fe,Midnight 24.337566666666667 19.6749 28.0551 1160pM Fe,Midday 35.95632857142857 29.6792 44.0193 1160pM Fe,Midnight 10.3679925 5.65928 18.0378 High carbon,Dark 17.411646 0.0 41.1147 High carbon,Light 14.64092076923077 0.0 40.5015 Low carbon,Dark 34.9377 34.9377 34.9377 Phloroglucinol 8.829236666666667 6.41565 11.004 Silicon starvation,12h 65.2437 65.2437 65.2437