condition mean min max 12pM Fe,Midday 27.2282 27.2282 27.2282 12pM Fe,Midnight 24.07255 23.3952 24.7499 58pM Fe,Midday 19.3566 19.3566 19.3566 58pM Fe,Midnight 20.918457142857143 18.0527 27.5763 233pM Fe,Midnight 14.698133333333333 14.2339 14.9809 1160pM Fe,Midday 15.884957142857143 14.4122 17.574 1160pM Fe,Midnight 12.122125833333333 8.36351 15.7785 High carbon,Dark 14.162913999999999 5.27322 27.5113 High carbon,Light 13.18995 2.00941 27.131 Low carbon,Dark 13.992 13.992 13.992 Phloroglucinol 20.383733333333335 12.5412 29.385 Silicon starvation,12h 24.6283 24.6283 24.6283