condition mean min max 12pM Fe,Midday 18.5094 18.5094 18.5094 12pM Fe,Midnight 14.56155 12.5786 16.5445 58pM Fe,Midday 14.7564 14.7564 14.7564 58pM Fe,Midnight 10.19222857142857 0.0 12.5377 233pM Fe,Midnight 8.399926666666667 7.89053 9.01623 1160pM Fe,Midday 12.585065714285715 9.67606 14.5462 1160pM Fe,Midnight 4.010553333333333 1.98735 7.30752 High carbon,Dark 8.202024 1.91994 16.4954 High carbon,Light 5.969501538461539 1.29466 13.876 Low carbon,Dark 9.82716 9.82716 9.82716 Phloroglucinol 6.130476666666667 4.01927 8.11564 Silicon starvation,12h 23.565 23.565 23.565