condition mean min max 12pM Fe,Midday 32.2897 32.2897 32.2897 12pM Fe,Midnight 29.426000000000002 24.4014 34.4506 58pM Fe,Midday 32.3809 32.3809 32.3809 58pM Fe,Midnight 22.862928571428572 0.0 30.1996 233pM Fe,Midnight 18.347766666666665 17.8246 18.6818 1160pM Fe,Midday 26.28427142857143 20.9018 30.7604 1160pM Fe,Midnight 20.3082 14.3476 25.2171 High carbon,Dark 22.687546666666666 12.4037 36.0921 High carbon,Light 19.450853076923078 5.22666 32.3668 Low carbon,Dark 12.9425 12.9425 12.9425 Phloroglucinol 38.872233333333334 33.6719 44.4379 Silicon starvation,12h 36.4673 36.4673 36.4673