condition mean min max 12pM Fe,Midday 13.7872 13.7872 13.7872 12pM Fe,Midnight 16.2987 15.481 17.1164 58pM Fe,Midday 11.3155 11.3155 11.3155 58pM Fe,Midnight 13.4924 7.91494 35.5156 233pM Fe,Midnight 6.398236666666667 5.63581 7.27478 1160pM Fe,Midday 6.098352857142857 4.71554 7.2994 1160pM Fe,Midnight 3.0895225 1.28514 4.85296 High carbon,Dark 8.091329666666667 0.0 29.795 High carbon,Light 3.7722815384615385 0.436714 9.95348 Low carbon,Dark 9.41602 9.41602 9.41602 Phloroglucinol 0.192013 0.136133 0.250417 Silicon starvation,12h 0.056844 0.056844 0.056844