condition mean min max 12pM Fe,Midday 36.7917 36.7917 36.7917 12pM Fe,Midnight 31.17035 30.7889 31.5518 58pM Fe,Midday 34.4626 34.4626 34.4626 58pM Fe,Midnight 31.27647142857143 27.0586 51.0897 233pM Fe,Midnight 22.936 21.9282 24.767 1160pM Fe,Midday 27.536914285714285 25.294 29.0384 1160pM Fe,Midnight 40.59855833333333 15.2125 57.7069 High carbon,Dark 21.312926666666666 9.2849 29.0874 High carbon,Light 21.459117692307693 3.89199 39.9967 Low carbon,Dark 10.5091 10.5091 10.5091 Phloroglucinol 60.16073333333333 43.6701 83.138 Silicon starvation,12h 45.3828 45.3828 45.3828