condition mean min max 12pM Fe,Midday 30.068 30.068 30.068 12pM Fe,Midnight 31.15945 28.6031 33.7158 58pM Fe,Midday 22.0682 22.0682 22.0682 58pM Fe,Midnight 32.4453 19.0441 82.8585 233pM Fe,Midnight 18.3079 17.5626 19.3615 1160pM Fe,Midday 14.4068 11.1879 16.3132 1160pM Fe,Midnight 13.289291666666667 8.2129 17.2558 High carbon,Dark 22.422193333333333 15.3513 27.7058 High carbon,Light 19.141107692307692 1.96182 35.4466 Low carbon,Dark 17.0439 17.0439 17.0439 Phloroglucinol 20.193933333333334 11.9767 32.3954 Silicon starvation,12h 25.4627 25.4627 25.4627