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Variation of the mineral elements in the barks of Pinus armandii infected by Cronartium ribicola.

作  者:
Yang Fazhong;Bin Yang;Yang DeQiang;Haifeng Zhu;He MeiJu
单  位:
College of Computer Science and Information Technology, Yunnan Normal University, Kunming 650092, China;College of Computer Science and Information Technology, Yunnan Normal University, Kunming 650092, Chin
关键词:
mineral elements;bark;decreased;ribicola;armandii;variatio
摘  要:
[Objective] The difference of mineral element content in healthy bark of P. armandii and bark affected by C. ribicola were compared,which would provide theoretical foundation for exploring new ways to control the disease by artificial water and fertilizer. [Method] Inductively Coupled Plasma Optical Emission Spectrometer(ICP-OES)was adopted to measure the variation of mineral elements content in bark after P. armandii was affected by C. ribicola. [Result] 45 mineral elements in the healthy bark and 46 mineral elements in affected bark caused by C. ribicola were detected. These mineral elements contained 14 kinds of mineral elements which were necessary for plant growth and 31 kinds of other mineral elements (32 kinds after affected disease). The total content of mineral elements in affected bark of P. armandii decreased for 15.77%,in which necessary elements for plant growth decreased for 15.54% and other elements decreased for 17.07%. The content of Ca decreased the most,decrease rate was about 75%. The order of content was also changed,they were NaCaBKSiMgSP in healthy bark,and NaBKCaMgPSiS in affected bark. [Conclusion] The results laid foundation for controlling C. ribicola through application of mineral elements.

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