condition mean min max 12pM Fe,Midday 20.2187 20.2187 20.2187 12pM Fe,Midnight 36.037 35.4965 36.5775 58pM Fe,Midday 28.4708 28.4708 28.4708 58pM Fe,Midnight 26.8418 24.4 31.1496 233pM Fe,Midnight 13.228133333333334 12.9075 13.7913 1160pM Fe,Midday 15.972 12.3664 19.1517 1160pM Fe,Midnight 7.6776775 2.46988 15.8346 High carbon,Dark 33.89030066666667 2.18229 63.8762 High carbon,Light 17.57554076923077 4.34712 34.5004 Low carbon,Dark 28.262 28.262 28.262 Phloroglucinol 5.260323333333333 4.0318 6.07285 Silicon starvation,12h 0.164929 0.164929 0.164929