condition mean min max 12pM Fe,Midday 281.637 281.637 281.637 12pM Fe,Midnight 137.314 115.206 159.422 58pM Fe,Midday 160.88 160.88 160.88 58pM Fe,Midnight 109.02752857142858 63.0534 316.83 233pM Fe,Midnight 40.7027 36.0781 45.146 1160pM Fe,Midday 88.66315714285714 73.7467 102.327 1160pM Fe,Midnight 165.33275 75.7308 233.59 High carbon,Dark 168.84740666666667 26.2348 1063.68 High carbon,Light 182.072 39.461 796.763 Low carbon,Dark 185.377 185.377 185.377 Phloroglucinol 387.3346666666667 241.824 473.878 Silicon starvation,12h 205.374 205.374 205.374