condition mean min max 12pM Fe,Midday 51.768 51.768 51.768 12pM Fe,Midnight 43.1053 34.702 51.5086 58pM Fe,Midday 51.4636 51.4636 51.4636 58pM Fe,Midnight 31.46582857142857 23.4029 55.4302 233pM Fe,Midnight 25.3197 23.5848 26.7044 1160pM Fe,Midday 36.10554285714286 33.5552 39.0637 1160pM Fe,Midnight 10.49525 7.32562 13.1642 High carbon,Dark 20.201152666666665 2.71849 43.9883 High carbon,Light 30.634071384615382 0.917968 77.3628 Low carbon,Dark 26.3512 26.3512 26.3512 Phloroglucinol 12.3676 10.5525 14.1291 Silicon starvation,12h 52.5211 52.5211 52.5211