condition mean min max 12pM Fe,Midday 19.7936 19.7936 19.7936 12pM Fe,Midnight 15.75895 15.0503 16.4676 58pM Fe,Midday 13.8054 13.8054 13.8054 58pM Fe,Midnight 12.947257142857143 0.0 16.7381 233pM Fe,Midnight 8.730886666666667 7.96207 9.13637 1160pM Fe,Midday 11.778312857142858 9.43429 13.9598 1160pM Fe,Midnight 4.750471666666667 2.51255 7.4284 High carbon,Dark 7.390184733333333 0.738155 18.7694 High carbon,Light 4.7155636923076925 0.315437 18.5599 Low carbon,Dark 9.08156 9.08156 9.08156 Phloroglucinol 9.77256 7.58783 13.4854 Silicon starvation,12h 5.03475 5.03475 5.03475