This paper presents an investigation of the capacity of four different plants to remove and assimilate ferri-cyanide at different pH conditions. Detached roots of weeping willows (Salix babylonica L.), rice (Oryza sativa L. cv. JY 98), soybean (Glycine max L. cv. WH) and maize (Zea mays L. var. HK) were hydroponically exposed to ferri-cyanide in a closed system at 25 +/- A 0.5A degrees C for 24 h kept under darkness. Almost all applied ferri-cyanide was in the complex form in the hydroponic solution at pH a parts per thousand yen 7.0 in the absence of light, while dissociation of ferri-cyanide...
