condition mean min max 12pM Fe,Midday 12.617 12.617 12.617 12pM Fe,Midnight 20.96395 20.9179 21.01 58pM Fe,Midday 9.38435 9.38435 9.38435 58pM Fe,Midnight 16.565371428571428 0.0 20.775 233pM Fe,Midnight 18.537066666666668 15.8289 21.4194 1160pM Fe,Midday 7.515734285714286 5.93768 9.36208 1160pM Fe,Midnight 6.31747 1.85441 12.9249 High carbon,Dark 14.295574866666668 0.869443 22.079 High carbon,Light 6.100861846153847 0.0 12.8663 Low carbon,Dark 8.914 8.914 8.914 Phloroglucinol 6.64325 5.66464 7.84852 Silicon starvation,12h 23.6169 23.6169 23.6169