condition mean min max 12pM Fe,Midday 16.2588 16.2588 16.2588 12pM Fe,Midnight 11.84923 9.55696 14.1415 58pM Fe,Midday 10.3208 10.3208 10.3208 58pM Fe,Midnight 4.2340985714285715 0.0 6.86127 233pM Fe,Midnight 5.5197899999999995 4.92355 6.57309 1160pM Fe,Midday 6.06353 4.89008 8.48271 1160pM Fe,Midnight 3.535715 1.30877 7.08244 High carbon,Dark 4.2380613333333335 0.63228 9.08394 High carbon,Light 3.394316076923077 0.0 11.5531 Low carbon,Dark 9.76387 9.76387 9.76387 Phloroglucinol 7.744383333333333 5.31556 9.87307 Silicon starvation,12h 11.8651 11.8651 11.8651