condition mean min max 12pM Fe,Midday 37.8962 37.8962 37.8962 12pM Fe,Midnight 31.5059 31.1557 31.8561 58pM Fe,Midday 29.273 29.273 29.273 58pM Fe,Midnight 20.793971428571428 0.0 27.8996 233pM Fe,Midnight 21.499 20.6147 22.2439 1160pM Fe,Midday 29.838914285714285 27.461 31.9843 1160pM Fe,Midnight 16.67064166666667 13.143 19.7015 High carbon,Dark 22.651175333333335 8.76623 39.5339 High carbon,Light 18.482501538461538 2.08713 28.0359 Low carbon,Dark 12.7995 12.7995 12.7995 Phloroglucinol 28.322366666666667 21.6627 33.0932 Silicon starvation,12h 21.7111 21.7111 21.7111