condition mean min max 12pM Fe,Midday 8.94878 8.94878 8.94878 12pM Fe,Midnight 5.20335 4.59022 5.81648 58pM Fe,Midday 3.95915 3.95915 3.95915 58pM Fe,Midnight 5.457501428571429 0.0 9.73311 233pM Fe,Midnight 5.253216666666667 4.16049 6.37445 1160pM Fe,Midday 2.1230251428571427 0.454038 4.83806 1160pM Fe,Midnight 5.1952425 1.6568 9.79906 High carbon,Dark 6.144401333333334 1.95317 11.8902 High carbon,Light 3.1578717692307694 0.0 7.37499 Low carbon,Dark 5.45304 5.45304 5.45304 Phloroglucinol 10.6934 3.50471 23.6251 Silicon starvation,12h 3.81868 3.81868 3.81868