condition mean min max 12pM Fe,Midday 40.688 40.688 40.688 12pM Fe,Midnight 39.000600000000006 38.9802 39.021 58pM Fe,Midday 28.0176 28.0176 28.0176 58pM Fe,Midnight 32.496985714285714 24.8238 56.2803 233pM Fe,Midnight 22.2061 22.18 22.2542 1160pM Fe,Midday 21.382571428571428 19.7954 25.964 1160pM Fe,Midnight 14.04675 10.8376 17.0007 High carbon,Dark 21.614293333333332 11.8949 35.7997 High carbon,Light 16.56284 4.66386 30.9114 Low carbon,Dark 16.9793 16.9793 16.9793 Phloroglucinol 18.0953 14.0874 23.0827 Silicon starvation,12h 33.5092 33.5092 33.5092