condition mean min max 12pM Fe,Midday 12.8191 12.8191 12.8191 12pM Fe,Midnight 31.5554 30.7198 32.391 58pM Fe,Midday 7.44381 7.44381 7.44381 58pM Fe,Midnight 24.47772857142857 0.0 33.5311 233pM Fe,Midnight 18.824466666666666 18.2522 19.9584 1160pM Fe,Midday 4.979222857142857 4.00091 7.65373 1160pM Fe,Midnight 29.03635 21.5783 34.8674 High carbon,Dark 14.602229333333334 1.5873 21.8586 High carbon,Light 5.108366999999999 0.0 13.1664 Low carbon,Dark 4.23121 4.23121 4.23121 Phloroglucinol 6.23423 3.8623 9.75714 Silicon starvation,12h 4.21665 4.21665 4.21665