condition mean min max 12pM Fe,Midday 34.29 34.29 34.29 12pM Fe,Midnight 27.477 26.2499 28.7041 58pM Fe,Midday 29.7093 29.7093 29.7093 58pM Fe,Midnight 21.877214285714285 17.5762 42.3251 233pM Fe,Midnight 16.79863333333333 16.5327 17.2025 1160pM Fe,Midday 21.4334 18.8994 22.8387 1160pM Fe,Midnight 11.37769 7.75344 15.3184 High carbon,Dark 16.805045333333332 5.28378 26.4001 High carbon,Light 15.645953846153846 10.1882 19.4007 Low carbon,Dark 13.1561 13.1561 13.1561 Phloroglucinol 7.95382 4.2906 15.169 Silicon starvation,12h 19.1712 19.1712 19.1712