condition mean min max 12pM Fe,Midday 20.9479 20.9479 20.9479 12pM Fe,Midnight 23.53535 20.4677 26.603 58pM Fe,Midday 31.2951 31.2951 31.2951 58pM Fe,Midnight 18.382728571428572 13.2668 34.6357 233pM Fe,Midnight 16.4176 14.8677 17.2133 1160pM Fe,Midday 15.961228571428572 13.4064 18.9311 1160pM Fe,Midnight 13.149741666666667 10.1739 16.2501 High carbon,Dark 15.390061333333334 0.46327 46.5302 High carbon,Light 13.821462307692308 2.55537 37.2745 Low carbon,Dark 26.44 26.44 26.44 Phloroglucinol 8.355776666666667 6.03664 11.9485 Silicon starvation,12h 37.1419 37.1419 37.1419