condition mean min max 12pM Fe,Midday 35.5129 35.5129 35.5129 12pM Fe,Midnight 28.838250000000002 28.4298 29.2467 58pM Fe,Midday 23.613 23.613 23.613 58pM Fe,Midnight 22.20342857142857 0.0 28.4396 233pM Fe,Midnight 18.7724 17.5469 20.1056 1160pM Fe,Midday 19.301242857142856 17.8999 21.448 1160pM Fe,Midnight 12.938643333333333 9.98852 15.7446 High carbon,Dark 18.810922666666666 8.44594 26.5844 High carbon,Light 13.433923846153846 2.17529 27.5174 Low carbon,Dark 14.677 14.677 14.677 Phloroglucinol 15.369 12.0696 21.8174 Silicon starvation,12h 28.6151 28.6151 28.6151