condition mean min max 12pM Fe,Midday 29.0931 29.0931 29.0931 12pM Fe,Midnight 32.9379 32.3863 33.4895 58pM Fe,Midday 20.0626 20.0626 20.0626 58pM Fe,Midnight 27.0543 17.9527 48.5549 233pM Fe,Midnight 15.056633333333332 14.6307 15.6639 1160pM Fe,Midday 15.469257142857144 13.7485 18.9133 1160pM Fe,Midnight 6.7433741666666664 3.59476 9.0037 High carbon,Dark 25.812341333333332 7.75252 42.6698 High carbon,Light 16.266383076923077 7.97487 25.0401 Low carbon,Dark 25.9681 25.9681 25.9681 Phloroglucinol 43.212666666666664 37.916 52.9494 Silicon starvation,12h 27.8993 27.8993 27.8993