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Effects of Graphene on Germination and Seedling Morphology in Rice

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The effects of graphene on the germination and growth of rice seeds were studied. Seeds were treated with graphene solutions at different concentrations. Obvious delaying effects on the germination rate were observed with the increasing of graphene concentration. The growth of radical and plumule was inhibited. And also, the morphology (root length, stem length, adventitious number, root fresh weight, fresh weight of over ground part and root cap ratio) of rice seedlings was certainly affected. After been treated by different concentrations of graphene for 16 d, promoting effects on adventitious root number, root fresh weight and fresh weight of over ground part were observed at concentration of 5 mg/L. Significant inhibitions on the stem length and fresh weight of over ground part were observed at concentration of 50 mg/L. In addition, all the indexes were inhibited at concentrations of 100 mg/L and 200 mg/L. It indicates that graphene certainly inhibit the morphogenesis of rice seedlings. But the mechanism by which graphene of 5 mg/L improves part of growth indexes still needs further study.

Document Type: Research Article

Publication date: April 1, 2015

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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