condition mean min max 12pM Fe,Midday 13.2438 13.2438 13.2438 12pM Fe,Midnight 22.3761 21.6537 23.0985 58pM Fe,Midday 10.376 10.376 10.376 58pM Fe,Midnight 20.124928571428573 0.0 35.7753 233pM Fe,Midnight 22.141466666666666 20.4389 23.7984 1160pM Fe,Midday 6.088932857142857 4.65924 8.6344 1160pM Fe,Midnight 15.9375625 8.18676 29.3216 High carbon,Dark 17.358266 5.90359 24.79 High carbon,Light 9.619049230769232 3.48342 15.2687 Low carbon,Dark 8.29442 8.29442 8.29442 Phloroglucinol 11.21129 8.28577 15.3203 Silicon starvation,12h 9.65461 9.65461 9.65461