condition mean min max 12pM Fe,Midday 33.5772 33.5772 33.5772 12pM Fe,Midnight 39.3429 37.1482 41.5376 58pM Fe,Midday 45.2457 45.2457 45.2457 58pM Fe,Midnight 35.2307 0.0 48.6276 233pM Fe,Midnight 22.8205 21.1545 26.0544 1160pM Fe,Midday 24.637785714285716 22.2278 28.4831 1160pM Fe,Midnight 22.483016666666668 11.733 37.5432 High carbon,Dark 11.213583999999999 3.79188 16.4774 High carbon,Light 8.906373846153846 4.30402 14.7286 Low carbon,Dark 13.1947 13.1947 13.1947 Phloroglucinol 5.3426 3.95427 6.50402 Silicon starvation,12h 13.0484 13.0484 13.0484