condition mean min max 12pM Fe,Midday 0.619866 0.619866 0.619866 12pM Fe,Midnight 0.728006 0.184182 1.27183 58pM Fe,Midday 0.940262 0.940262 0.940262 58pM Fe,Midnight 1.170837142857143 0.0 1.71102 233pM Fe,Midnight 1.5862066666666668 1.40174 1.81987 1160pM Fe,Midday 0.6895138571428572 0.466721 1.02503 1160pM Fe,Midnight 2.406759166666667 1.19857 3.63539 High carbon,Dark 2.2188172 0.561398 3.65984 High carbon,Light 1.9873857692307693 0.0 5.03204 Low carbon,Dark 1.43894 1.43894 1.43894 Phloroglucinol 2.5396133333333335 2.0531 2.91119 Silicon starvation,12h 1.00767 1.00767 1.00767