condition mean min max 12pM Fe,Midday 521.357 521.357 521.357 12pM Fe,Midnight 546.126 544.946 547.306 58pM Fe,Midday 678.925 678.925 678.925 58pM Fe,Midnight 372.381 0.0 515.482 233pM Fe,Midnight 415.1526666666667 408.558 422.703 1160pM Fe,Midday 519.921 404.316 615.673 1160pM Fe,Midnight 234.25908333333334 181.558 298.682 High carbon,Dark 517.1350666666667 265.045 759.888 High carbon,Light 490.8207692307692 283.765 751.066 Low carbon,Dark 695.332 695.332 695.332 Phloroglucinol 274.34766666666667 265.055 279.859 Silicon starvation,12h 251.861 251.861 251.861