condition mean min max 12pM Fe,Midday 13.1527 13.1527 13.1527 12pM Fe,Midnight 12.29185 11.0905 13.4932 58pM Fe,Midday 11.6382 11.6382 11.6382 58pM Fe,Midnight 9.353104285714286 0.0 13.6799 233pM Fe,Midnight 10.889866666666666 10.2468 11.8439 1160pM Fe,Midday 9.424717142857142 8.10386 10.6509 1160pM Fe,Midnight 12.968233333333334 11.1458 16.3219 High carbon,Dark 12.754607333333333 4.22559 20.8417 High carbon,Light 9.421585384615385 3.94936 18.8926 Low carbon,Dark 15.0187 15.0187 15.0187 Phloroglucinol 9.034193333333334 5.05668 11.0263 Silicon starvation,12h 22.5516 22.5516 22.5516