condition mean min max 12pM Fe,Midday 58.0709 58.0709 58.0709 12pM Fe,Midnight 43.5971 41.9006 45.2936 58pM Fe,Midday 39.7369 39.7369 39.7369 58pM Fe,Midnight 34.447185714285716 0.0 47.3131 233pM Fe,Midnight 36.352533333333334 34.918 37.3703 1160pM Fe,Midday 32.38135714285714 28.5995 35.9628 1160pM Fe,Midnight 28.196233333333332 22.6783 32.0987 High carbon,Dark 31.018213333333332 12.8436 49.0873 High carbon,Light 24.194792307692307 12.3074 40.1773 Low carbon,Dark 24.2199 24.2199 24.2199 Phloroglucinol 19.1385 14.1916 22.4195 Silicon starvation,12h 42.402 42.402 42.402