condition mean min max 12pM Fe,Midday 0.748548 0.748548 0.748548 12pM Fe,Midnight 36.31375 32.6953 39.9322 58pM Fe,Midday 0.66235 0.66235 0.66235 58pM Fe,Midnight 38.054 0.0 51.4901 233pM Fe,Midnight 82.47213333333333 78.317 86.7355 1160pM Fe,Midday 0.591944 0.287539 1.23782 1160pM Fe,Midnight 69.12614166666667 46.9405 95.6885 High carbon,Dark 33.66732666666667 14.4308 64.1318 High carbon,Light 9.04543 4.20022 25.3558 Low carbon,Dark 8.51453 8.51453 8.51453 Phloroglucinol 3.383793333333333 1.65636 4.92512 Silicon starvation,12h 25.554 25.554 25.554