condition mean min max 12pM Fe,Midday 52.591 52.591 52.591 12pM Fe,Midnight 44.01475 41.9813 46.0482 58pM Fe,Midday 36.6339 36.6339 36.6339 58pM Fe,Midnight 28.256642857142857 0.0 34.9577 233pM Fe,Midnight 25.360566666666667 22.3946 27.675 1160pM Fe,Midday 29.118385714285715 26.4336 33.4799 1160pM Fe,Midnight 14.432358333333333 13.1274 16.0642 High carbon,Dark 22.084076666666668 8.86738 41.4102 High carbon,Light 18.07029 3.57605 31.3831 Low carbon,Dark 18.9619 18.9619 18.9619 Phloroglucinol 29.170266666666667 16.227 42.5825 Silicon starvation,12h 26.6484 26.6484 26.6484