condition mean min max 12pM Fe,Midday 35.5324 35.5324 35.5324 12pM Fe,Midnight 31.0321 30.6753 31.3889 58pM Fe,Midday 25.2622 25.2622 25.2622 58pM Fe,Midnight 23.2582 20.0179 24.5547 233pM Fe,Midnight 19.4644 18.1168 20.2521 1160pM Fe,Midday 23.680128571428572 22.7788 24.311 1160pM Fe,Midnight 11.0347475 9.6846 13.303 High carbon,Dark 19.80182 12.0487 29.6821 High carbon,Light 16.150201538461538 5.90091 27.7934 Low carbon,Dark 19.3073 19.3073 19.3073 Phloroglucinol 10.006196666666666 6.59849 16.7271 Silicon starvation,12h 24.0615 24.0615 24.0615