condition mean min max 12pM Fe,Midday 81.7249 81.7249 81.7249 12pM Fe,Midnight 80.86335 79.7872 81.9395 58pM Fe,Midday 44.4379 44.4379 44.4379 58pM Fe,Midnight 48.352 40.221 65.8778 233pM Fe,Midnight 20.7476 19.158 22.1771 1160pM Fe,Midday 28.671885714285715 24.4182 31.2939 1160pM Fe,Midnight 26.205725 15.6454 34.8487 High carbon,Dark 37.244526666666665 18.9334 60.7347 High carbon,Light 29.985592307692308 8.7279 47.2294 Low carbon,Dark 26.4998 26.4998 26.4998 Phloroglucinol 78.84523333333334 50.8626 108.581 Silicon starvation,12h 33.9516 33.9516 33.9516