condition mean min max 12pM Fe,Midday 34.2568 34.2568 34.2568 12pM Fe,Midnight 38.63285 35.2542 42.0115 58pM Fe,Midday 28.3103 28.3103 28.3103 58pM Fe,Midnight 44.0686 29.4258 114.885 233pM Fe,Midnight 35.2244 33.1223 38.1732 1160pM Fe,Midday 21.3623 19.3995 23.6337 1160pM Fe,Midnight 30.14294166666667 25.5195 39.2873 High carbon,Dark 25.95936 15.4241 37.5535 High carbon,Light 27.077115384615386 16.4717 37.8527 Low carbon,Dark 19.6056 19.6056 19.6056 Phloroglucinol 17.658966666666664 11.7143 22.0915 Silicon starvation,12h 28.5624 28.5624 28.5624