锰、铁、锌、铜4种微量元素对芍药生长和芍药苷含量的影响

Effects of Mn,Fe,Zn and Cu on growth and paeoniflorin content of Paeonia lactiflora

目的:研究锰、铁、锌、铜4种元素对二、三年生芍药生长的影响。方法:采用完全随机区组,测定施用各微量元素后芍药产量等生理指标和质量指标芍药苷的变化,并用原子吸收分光光度法测定各元素在芍药根、茎、叶及土壤中的含量。结果与结论:锰、铁、锌、铜在一定水平下能显著促进芍药的生长并能提高根中芍药苷的含量,但施用过多会产生生长抑制,除锌外其他元素均不在根中积累。

Objective ： To study the effects of four trace elements Mn, Fe, Zn and Cu on growth of the 2nd- and the 3rd-years＇ Paeonia lactiflora. Method： The experiment was designed as randomized blocks. The data of physiological parameters such as fresh weight of root, numbers of bud and root division, length and diameter of the root and the contents of paeoniflorin in root were measured after fertilized with the four trace elements. Also the contents of the four trace elements in soil and roots, stem and leaves of P. lactiflora were detected by atomic absorption spectrometry. Result and conclusion ： The growth of the P. lactiflora was improved and the content of paeoniflorin was increased by proper level of Mn, Fe, Zn and Cu, but depressed by the higher level. Only Zn can be accumulated in the roots of P. lactiflora.