condition mean min max 12pM Fe,Midday 29.7486 29.7486 29.7486 12pM Fe,Midnight 31.9966 30.9368 33.0564 58pM Fe,Midday 15.5053 15.5053 15.5053 58pM Fe,Midnight 15.695957142857143 0.0 23.7323 233pM Fe,Midnight 18.4461 16.6727 20.9004 1160pM Fe,Midday 17.63752857142857 15.8794 20.3006 1160pM Fe,Midnight 12.1358625 6.54355 17.7269 High carbon,Dark 16.606808 6.40401 32.4058 High carbon,Light 14.03654 1.16407 30.2827 Low carbon,Dark 19.2037 19.2037 19.2037 Phloroglucinol 24.323766666666668 21.9336 26.0467 Silicon starvation,12h 22.7226 22.7226 22.7226