condition mean min max 12pM Fe,Midday 29.5402 29.5402 29.5402 12pM Fe,Midnight 25.91135 24.3101 27.5126 58pM Fe,Midday 24.0134 24.0134 24.0134 58pM Fe,Midnight 25.9773 21.9698 28.9361 233pM Fe,Midnight 32.240766666666666 30.8696 33.6958 1160pM Fe,Midday 17.939285714285713 15.6815 19.3733 1160pM Fe,Midnight 59.07176666666667 52.0109 68.4674 High carbon,Dark 44.2645 12.3075 73.0505 High carbon,Light 33.21716461538462 2.9198 69.28 Low carbon,Dark 24.0659 24.0659 24.0659 Phloroglucinol 8.92502 8.14856 9.68172 Silicon starvation,12h 30.6542 30.6542 30.6542