condition mean min max 12pM Fe,Midday 31.82 31.82 31.82 12pM Fe,Midnight 56.0978 53.8747 58.3209 58pM Fe,Midday 22.3186 22.3186 22.3186 58pM Fe,Midnight 39.30681428571429 0.0 54.4506 233pM Fe,Midnight 29.143533333333334 27.396 30.189 1160pM Fe,Midday 17.120842857142858 14.1608 20.5802 1160pM Fe,Midnight 40.48996666666667 35.6479 50.9485 High carbon,Dark 26.17482 18.3955 33.746 High carbon,Light 19.28367076923077 2.62823 45.3701 Low carbon,Dark 12.9266 12.9266 12.9266 Phloroglucinol 34.3659 28.1563 46.6131 Silicon starvation,12h 29.3648 29.3648 29.3648