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作 者:刘凤艳[1] 侯碧辉[1] 黄广学[2] 张隐奇[3]
机构地区:[1]北京工业大学应用数理学院,北京100124 [2]北京农业职业学院,北京102442 [3]北京工业大学固体微结构与性能研究所,北京100124
出 处:《纳米科技》2009年第5期27-30,53,共5页
基 金:国家基础研究项目973项目(2006CB705601)资助的课题;致谢 作者感谢国家基础研究项目973项目(2006CB705601)对本工作的支持.感谢北京工业大学固体微结构与性能研究所吉元教授和中国科学院高能物珲所徐建华副研究员对实验的建议.
摘 要:对施用和未施用399纳米肥料的小麦籽粒进行了发芽率的实验比较,结果发现,未施用399的小麦发芽率仅为17%,而施用399的小麦发芽率高达94%;施用399的小麦根系发达且长势很好,未施用399的小麦籽粒的胚根和胚芽生长都非常慢。利用环境扫描电子显微镜(SEN)及其所带能谱仪观察了两种麦芽的外部形貌、截面特征,并测量了局部位置的元素百分比,结果发现,施用399的小麦茎部表皮细胞比未施用的明显增大,维管柬也整齐致密得多,而且,除C和O两种元素外,施用399的小麦各部分所含元素不管从所占比例上还是从种类上,都多于未施用399的小麦,这应该是其发芽率高和长势好的原因。The germination rate of wheat seeds with and without application the 399 of nanometer fertilizer were observed and compared. The results showed that the germination rate of wheat seeds without the 399 nanometer fertilizer application is only 12 percent and that of wheat seeds using the 399 nanometer fertilizer is up to 94 percent. The radicle and plumule of the former grew very. slowly and The wheat buds of the latter have developed root system and growing well. The malt external morphology, cross-section characteristics of wheat seeds were observed and compared by Environmental Scanning Electron Microscope. And the different element atom percents of corresponding location of two kinds of wheat buds were measured.The result shows that the epidermal cells of wheat stem using 399 Nanometer fertilizer are larger and the vascular bundles are more compact.Besides C and O elements, the species and the percent of elements contained in the wheat buds applied with application 399 of nanometer fertilizer are more than those without using 399 of nanometer fertilizer, which is the main reason why the wheat buds has the high germination rate and better growing.
分 类 号:S129[农业科学—农业基础科学] Q94[生物学—植物学]
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