condition mean min max 12pM Fe,Midday 21.7428 21.7428 21.7428 12pM Fe,Midnight 34.91585 34.2697 35.562 58pM Fe,Midday 13.8171 13.8171 13.8171 58pM Fe,Midnight 31.42075714285714 28.6127 35.1331 233pM Fe,Midnight 22.987766666666666 21.6652 24.2625 1160pM Fe,Midday 12.394885714285714 11.4321 13.1355 1160pM Fe,Midnight 18.1854 13.4195 26.422 High carbon,Dark 15.202343333333333 3.75938 29.2103 High carbon,Light 8.894892846153846 0.554557 19.1018 Low carbon,Dark 11.8842 11.8842 11.8842 Phloroglucinol 21.124166666666667 13.9343 28.8188 Silicon starvation,12h 12.9895 12.9895 12.9895