condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.94142 0.0 1.88284 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.4341161428571429 0.0 1.51459 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.7111744285714285 0.0 3.03495 1160pM Fe,Midnight 0.6897015833333333 0.0 3.84934 High carbon,Dark 1.397436 0.0 6.25484 High carbon,Light 1.038943076923077 0.0 7.79576 Low carbon,Dark 1.49117 1.49117 1.49117 Phloroglucinol 0.5934673333333333 0.575032 0.625205 Silicon starvation,12h 3.13273 3.13273 3.13273