condition mean min max 12pM Fe,Midday 32.2042 32.2042 32.2042 12pM Fe,Midnight 31.09285 30.7312 31.4545 58pM Fe,Midday 23.2972 23.2972 23.2972 58pM Fe,Midnight 29.7947 25.1995 33.5638 233pM Fe,Midnight 15.118 14.9515 15.3851 1160pM Fe,Midday 17.7791 15.7247 18.9709 1160pM Fe,Midnight 18.459185833333333 9.67573 27.5027 High carbon,Dark 24.565736 5.97784 43.8466 High carbon,Light 15.80458 2.81824 40.4666 Low carbon,Dark 22.5116 22.5116 22.5116 Phloroglucinol 17.52606666666667 12.7261 26.1411 Silicon starvation,12h 20.3041 20.3041 20.3041