condition mean min max 12pM Fe,Midday 5.42721 5.42721 5.42721 12pM Fe,Midnight 5.018345 4.95911 5.07758 58pM Fe,Midday 5.90593 5.90593 5.90593 58pM Fe,Midnight 3.589375714285714 0.0 5.16632 233pM Fe,Midnight 4.43367 3.96772 4.79686 1160pM Fe,Midday 4.355771428571429 3.59418 4.91357 1160pM Fe,Midnight 3.224248333333333 2.24537 4.283 High carbon,Dark 5.276907333333333 2.64249 10.8416 High carbon,Light 4.042608461538461 1.54079 6.86266 Low carbon,Dark 4.192 4.192 4.192 Phloroglucinol 11.674466666666667 11.0312 12.3491 Silicon starvation,12h 6.32321 6.32321 6.32321