condition mean min max 12pM Fe,Midday 2.17819 2.17819 2.17819 12pM Fe,Midnight 38.2254 35.1111 41.3397 58pM Fe,Midday 0.963683 0.963683 0.963683 58pM Fe,Midnight 18.2182 0.0 25.6733 233pM Fe,Midnight 72.7645 64.8121 79.695 1160pM Fe,Midday 0.051251285714285715 0.0 0.358759 1160pM Fe,Midnight 33.717016666666666 15.3228 70.2737 High carbon,Dark 38.79172666666667 13.7932 69.9089 High carbon,Light 28.36197 8.06652 67.2724 Low carbon,Dark 23.8915 23.8915 23.8915 Phloroglucinol 6.923743333333333 5.45964 8.26257 Silicon starvation,12h 38.419 38.419 38.419