condition mean min max 12pM Fe,Midday 10.4481 10.4481 10.4481 12pM Fe,Midnight 16.801650000000002 16.4536 17.1497 58pM Fe,Midday 8.45254 8.45254 8.45254 58pM Fe,Midnight 13.516842857142857 0.0 18.4761 233pM Fe,Midnight 17.723866666666666 16.4443 18.9625 1160pM Fe,Midday 7.036364285714286 5.16449 8.11956 1160pM Fe,Midnight 12.240780833333334 9.19316 15.4751 High carbon,Dark 14.190098666666666 2.83878 20.9302 High carbon,Light 8.585091538461539 3.76881 17.0573 Low carbon,Dark 8.24635 8.24635 8.24635 Phloroglucinol 7.372403333333333 4.71821 9.35548 Silicon starvation,12h 22.7595 22.7595 22.7595