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Duckweeds as crop plants Members of the plant family Lemnaceae (duckweeds) are not only interesting because they represent the smallest flowering plants; they possess also the fastest rates of producing biomass. As aquatic plants, duckweed production is not in competition with other agricultural crops that require fertile land while the cultivation of duckweeds does not contribute to further eutrophication of surface water. Instead, they can be cultivated on municipal or agricultural waste water and remove the nutrients during their propagation and growth. Duckweeds can thus be used for cleaning of waste water and the resulting biomass can be valuable starting material for animal feeds and the production of biofuels. Research focusing on these goals has begun to transfer from research laboratories to pilot plants in different parts of the world, e.g. in New Jersey and North Carolina, USA; Chengdu, P. R. China; and Armidale, Australia. 相似文献
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Tiny, inconspicuous duckweeds (Lemnaceae) are often considered a nuisance, due to their propensity to rapidly cover surfaces of water bodies. However, their pronounced growth potential, together with their particular morphological, clonal and genomic properties and their easy cultivation make them valuable model plants for studies, and have established them as indicator plants in the field of ecotoxicology. Duckweeds can make a valuable contribution to wastewater remediation, and the biomass that their growth thereby provides can be of value in many ways, including energy generation, fuel production and use as fertilizer and animal food. Duckweeds grown under controlled conditions can contribute to human nutrition and serve as biofactories for heterologous protein expression. The versatile usage potential of duckweeds has not been thoroughly exploited, as it could and should be in the future. 相似文献
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