condition mean min max 12pM Fe,Midday 19.7877 19.7877 19.7877 12pM Fe,Midnight 13.27315 12.8395 13.7068 58pM Fe,Midday 19.9035 19.9035 19.9035 58pM Fe,Midnight 9.056135714285714 0.0 13.2591 233pM Fe,Midnight 16.288133333333334 15.3776 17.0268 1160pM Fe,Midday 15.813142857142857 13.7728 18.5981 1160pM Fe,Midnight 19.71266 9.92582 28.0016 High carbon,Dark 17.293189333333334 6.75467 25.1683 High carbon,Light 12.434919230769232 1.14548 24.4934 Low carbon,Dark 13.4663 13.4663 13.4663 Phloroglucinol 22.60953333333333 18.1772 27.078 Silicon starvation,12h 21.3625 21.3625 21.3625