condition mean min max 12pM Fe,Midday 38.8043 38.8043 38.8043 12pM Fe,Midnight 38.964150000000004 38.3253 39.603 58pM Fe,Midday 30.7104 30.7104 30.7104 58pM Fe,Midnight 26.8993 0.0 36.3883 233pM Fe,Midnight 18.000133333333334 15.9866 20.6022 1160pM Fe,Midday 23.15767142857143 17.776 26.5041 1160pM Fe,Midnight 16.949516666666668 12.4065 24.4919 High carbon,Dark 23.221880266666666 0.764004 41.6178 High carbon,Light 18.169340769230768 1.41892 35.5007 Low carbon,Dark 28.9821 28.9821 28.9821 Phloroglucinol 8.52632 5.73913 11.0019 Silicon starvation,12h 19.4729 19.4729 19.4729