condition mean min max 12pM Fe,Midday 35.8498 35.8498 35.8498 12pM Fe,Midnight 38.942949999999996 38.1979 39.688 58pM Fe,Midday 30.856 30.856 30.856 58pM Fe,Midnight 36.40425714285714 29.9381 69.5449 233pM Fe,Midnight 20.883633333333332 20.6554 21.1923 1160pM Fe,Midday 25.254285714285714 23.3336 27.4198 1160pM Fe,Midnight 13.117358333333334 10.4697 14.8134 High carbon,Dark 19.99655466666667 8.83687 30.9357 High carbon,Light 13.362366923076923 3.57753 27.3841 Low carbon,Dark 14.9411 14.9411 14.9411 Phloroglucinol 25.380466666666667 18.0512 35.4871 Silicon starvation,12h 16.3624 16.3624 16.3624