condition mean min max 12pM Fe,Midday 29.0439 29.0439 29.0439 12pM Fe,Midnight 18.9633 16.4074 21.5192 58pM Fe,Midday 26.4926 26.4926 26.4926 58pM Fe,Midnight 16.244385714285713 0.0 20.0618 233pM Fe,Midnight 14.973033333333333 13.6222 16.6705 1160pM Fe,Midday 19.523057142857144 18.0717 21.3947 1160pM Fe,Midnight 19.2953 17.1573 21.8306 High carbon,Dark 18.21718 10.9565 27.8483 High carbon,Light 15.949969384615384 0.485709 26.1965 Low carbon,Dark 9.61384 9.61384 9.61384 Phloroglucinol 12.907733333333333 10.9946 15.1461 Silicon starvation,12h 25.5016 25.5016 25.5016