condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.121852 0.0 0.243704 58pM Fe,Midday 0.420398 0.420398 0.420398 58pM Fe,Midnight 0.22188457142857143 0.0 0.400996 233pM Fe,Midnight 0.049086333333333336 0.0 0.147259 1160pM Fe,Midday 0.206304 0.0 0.365006 1160pM Fe,Midnight 1.6505374166666666 0.0 3.66162 High carbon,Dark 0.8782410666666667 0.0 1.98284 High carbon,Light 0.3889713846153846 0.0 1.16536 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 3.4573496666666665 0.744289 6.47384 Silicon starvation,12h 0.0 0.0 0.0