condition mean min max 12pM Fe,Midday 35.3528 35.3528 35.3528 12pM Fe,Midnight 36.043099999999995 34.8961 37.1901 58pM Fe,Midday 30.4865 30.4865 30.4865 58pM Fe,Midnight 23.80982857142857 0.0 30.3345 233pM Fe,Midnight 22.679633333333335 19.315 24.4422 1160pM Fe,Midday 25.034971428571428 18.554 28.4562 1160pM Fe,Midnight 6.344355 3.13126 11.9465 High carbon,Dark 23.813651333333333 2.84908 38.5989 High carbon,Light 14.482646923076922 2.10138 26.4408 Low carbon,Dark 11.6841 11.6841 11.6841 Phloroglucinol 5.279846666666667 4.89883 5.87181 Silicon starvation,12h 24.2058 24.2058 24.2058