condition mean min max 12pM Fe,Midday 17.808 17.808 17.808 12pM Fe,Midnight 17.586 16.0504 19.1216 58pM Fe,Midday 11.1352 11.1352 11.1352 58pM Fe,Midnight 19.634742857142857 13.4269 42.2035 233pM Fe,Midnight 17.4778 15.6756 18.7176 1160pM Fe,Midday 11.284642857142858 10.2573 12.7491 1160pM Fe,Midnight 11.15528 8.4372 14.7299 High carbon,Dark 15.849586666666667 10.1609 20.6934 High carbon,Light 13.39494923076923 3.33079 21.1606 Low carbon,Dark 12.3466 12.3466 12.3466 Phloroglucinol 19.711533333333332 16.3665 21.677 Silicon starvation,12h 26.614 26.614 26.614