condition mean min max 12pM Fe,Midday 1.29271 1.29271 1.29271 12pM Fe,Midnight 58.06455 55.5671 60.562 58pM Fe,Midday 0.762566 0.762566 0.762566 58pM Fe,Midnight 36.8191 0.0 51.2881 233pM Fe,Midnight 38.250099999999996 37.1061 39.1796 1160pM Fe,Midday 1.4683664285714286 0.699614 2.13766 1160pM Fe,Midnight 43.4385 34.3785 55.2066 High carbon,Dark 31.376784666666666 2.73181 57.7358 High carbon,Light 19.486453846153847 2.58041 54.3679 Low carbon,Dark 25.2073 25.2073 25.2073 Phloroglucinol 12.710133333333333 11.3406 14.1661 Silicon starvation,12h 21.8202 21.8202 21.8202