condition mean min max 12pM Fe,Midday 29.1436 29.1436 29.1436 12pM Fe,Midnight 29.1357 28.6754 29.596 58pM Fe,Midday 20.6648 20.6648 20.6648 58pM Fe,Midnight 24.2865 19.0298 34.8826 233pM Fe,Midnight 14.314233333333334 14.1039 14.5442 1160pM Fe,Midday 16.064685714285716 13.3496 18.2273 1160pM Fe,Midnight 6.868073333333333 1.90021 15.1152 High carbon,Dark 15.671486 1.55524 43.6982 High carbon,Light 9.569762307692308 2.07966 29.7193 Low carbon,Dark 18.8153 18.8153 18.8153 Phloroglucinol 2.303723333333333 1.60449 3.19741 Silicon starvation,12h 18.5359 18.5359 18.5359