condition mean min max 12pM Fe,Midday 12.5522 12.5522 12.5522 12pM Fe,Midnight 11.00011 9.79782 12.2024 58pM Fe,Midday 10.3824 10.3824 10.3824 58pM Fe,Midnight 8.049865714285714 0.0 12.2322 233pM Fe,Midnight 8.19006 7.47724 8.62682 1160pM Fe,Midday 7.518454285714286 6.31724 8.98874 1160pM Fe,Midnight 6.470695 4.38159 8.43363 High carbon,Dark 8.087354 2.27764 17.5953 High carbon,Light 8.60015823076923 0.642577 17.9908 Low carbon,Dark 2.21705 2.21705 2.21705 Phloroglucinol 17.51653333333333 13.3372 21.737 Silicon starvation,12h 16.3019 16.3019 16.3019