Introduction: Chromium is among the important heavy metals which is found in most industrial wastes and is associated with both health and environmental risks. Therefore, this study tries to analyze the efficiency of lemna and azolla powders in removing hexavalent chromium from aqueous solutions. Methods: As an experimental trial, this study was conducted experimentally in the lab scale. Initia...

The hrmA gene of the N2-fixing cyanobacterium Nostoc punctiforme functions in repressing the formation of transitory motile filaments, termed hormogonia, by plant-associated vegetative filaments. Here, we report that anthocyanins can contribute to induction of hrmA expression. Aqueous extract from fronds of the fern Azolla pinnata, a host of symbiotic Nostoc spp., was found to be a potent induc...

The low productivity of cucumber plants in Indonesia can be caused by several factors, one which is fertilization. Fertilization on Inceptisol soil has a nitrogen content needed to increase crop yields. use inorganic fertilizers limited avoid environmental pollution, so the biofertilizers an environmentally friendly option. purpose this study was determine effect concentration and interval appl...