condition mean min max 12pM Fe,Midday 37.3794 37.3794 37.3794 12pM Fe,Midnight 40.4161 39.8702 40.962 58pM Fe,Midday 27.2019 27.2019 27.2019 58pM Fe,Midnight 35.12097142857143 30.8114 39.5841 233pM Fe,Midnight 20.686033333333334 19.078 22.1909 1160pM Fe,Midday 24.585885714285713 21.9382 27.2959 1160pM Fe,Midnight 16.541325 14.4878 18.5359 High carbon,Dark 22.627994 1.66104 36.7231 High carbon,Light 12.429046153846153 4.01039 27.495 Low carbon,Dark 12.7724 12.7724 12.7724 Phloroglucinol 24.325633333333332 20.4129 31.4167 Silicon starvation,12h 28.3735 28.3735 28.3735