condition mean min max 12pM Fe,Midday 53.2671 53.2671 53.2671 12pM Fe,Midnight 58.418949999999995 54.9359 61.902 58pM Fe,Midday 34.6165 34.6165 34.6165 58pM Fe,Midnight 59.995014285714284 38.2768 157.143 233pM Fe,Midnight 24.208000000000002 20.9923 26.7175 1160pM Fe,Midday 25.29565714285714 22.0746 30.5028 1160pM Fe,Midnight 16.656958333333332 11.3017 22.745 High carbon,Dark 25.833199333333333 6.30559 43.2916 High carbon,Light 11.674874615384615 1.19759 20.6111 Low carbon,Dark 15.8029 15.8029 15.8029 Phloroglucinol 33.923033333333336 23.822 42.3143 Silicon starvation,12h 15.8453 15.8453 15.8453