condition mean min max 12pM Fe,Midday 77.1832 77.1832 77.1832 12pM Fe,Midnight 37.512 31.9907 43.0333 58pM Fe,Midday 56.4179 56.4179 56.4179 58pM Fe,Midnight 18.453657142857143 0.0 27.6934 233pM Fe,Midnight 15.272933333333334 14.2809 15.9361 1160pM Fe,Midday 50.879714285714286 40.5325 59.6542 1160pM Fe,Midnight 5.915510833333333 1.2617 13.0399 High carbon,Dark 18.220293333333334 7.46943 29.4689 High carbon,Light 23.863767846153845 0.658533 57.8605 Low carbon,Dark 29.0829 29.0829 29.0829 Phloroglucinol 19.3837 14.4799 24.0448 Silicon starvation,12h 51.8704 51.8704 51.8704