condition mean min max 12pM Fe,Midday 4.35132 4.35132 4.35132 12pM Fe,Midnight 7.7895199999999996 6.38852 9.19052 58pM Fe,Midday 6.34159 6.34159 6.34159 58pM Fe,Midnight 4.570958571428571 0.0 5.96977 233pM Fe,Midnight 4.963236666666667 4.62272 5.34826 1160pM Fe,Midday 4.228028571428571 3.37263 5.92567 1160pM Fe,Midnight 4.878191666666667 3.37051 6.26563 High carbon,Dark 5.4622340000000005 2.0284 7.40064 High carbon,Light 3.502579846153846 0.602748 5.21345 Low carbon,Dark 5.82296 5.82296 5.82296 Phloroglucinol 8.282053333333334 5.13252 13.0789 Silicon starvation,12h 6.9904 6.9904 6.9904