condition mean min max 12pM Fe,Midday 3.63616 3.63616 3.63616 12pM Fe,Midnight 3.88542 3.58244 4.1884 58pM Fe,Midday 3.21744 3.21744 3.21744 58pM Fe,Midnight 2.93257 0.0 4.21152 233pM Fe,Midnight 3.64365 3.36129 3.8536 1160pM Fe,Midday 4.109925714285715 3.48112 4.9162 1160pM Fe,Midnight 3.319306666666667 2.40832 4.23134 High carbon,Dark 7.628759333333333 0.90996 15.6198 High carbon,Light 3.733861846153846 0.172825 6.54247 Low carbon,Dark 3.31712 3.31712 3.31712 Phloroglucinol 5.070996666666667 4.35716 5.69349 Silicon starvation,12h 1.7785 1.7785 1.7785