condition mean min max 12pM Fe,Midday 26.8437 26.8437 26.8437 12pM Fe,Midnight 24.87805 20.999 28.7571 58pM Fe,Midday 27.3259 27.3259 27.3259 58pM Fe,Midnight 14.294785714285714 0.0 18.3544 233pM Fe,Midnight 15.489433333333334 13.1668 18.2601 1160pM Fe,Midday 19.826171428571428 15.5166 24.7053 1160pM Fe,Midnight 5.001975 2.45075 8.42173 High carbon,Dark 21.466875333333334 6.99259 36.7015 High carbon,Light 14.93822076923077 1.11881 27.1477 Low carbon,Dark 15.4407 15.4407 15.4407 Phloroglucinol 9.263623333333333 7.7406 10.6632 Silicon starvation,12h 33.2496 33.2496 33.2496