condition mean min max 12pM Fe,Midday 17.0126 17.0126 17.0126 12pM Fe,Midnight 15.24475 13.0365 17.453 58pM Fe,Midday 13.8085 13.8085 13.8085 58pM Fe,Midnight 7.910082857142857 0.0 10.224 233pM Fe,Midnight 9.40804 9.00168 10.0703 1160pM Fe,Midday 12.212175714285713 9.35423 14.0662 1160pM Fe,Midnight 14.948470833333333 3.61675 24.8427 High carbon,Dark 5.600332 1.28122 11.8566 High carbon,Light 5.770896923076923 1.03962 10.2436 Low carbon,Dark 5.19638 5.19638 5.19638 Phloroglucinol 13.748766666666667 11.8628 15.527 Silicon starvation,12h 21.1059 21.1059 21.1059