condition mean min max 12pM Fe,Midday 17.7982 17.7982 17.7982 12pM Fe,Midnight 16.32885 16.0967 16.561 58pM Fe,Midday 17.4064 17.4064 17.4064 58pM Fe,Midnight 11.374371428571429 0.0 14.4945 233pM Fe,Midnight 15.026299999999999 14.0868 15.6785 1160pM Fe,Midday 13.473238571428572 9.02387 16.4584 1160pM Fe,Midnight 6.2778325 3.38897 10.0995 High carbon,Dark 13.301308 5.72473 24.4755 High carbon,Light 9.48994923076923 2.2059 16.1263 Low carbon,Dark 14.0801 14.0801 14.0801 Phloroglucinol 12.338433333333333 10.0679 14.8215 Silicon starvation,12h 27.3152 27.3152 27.3152