山东棕壤茶区茶树荧光性绿斑病因的营养诊断

doi:10.13305/j.cnki.jts.2009.2.010

Abstract

Abstract: The fluorescence green spot disease is a physiological disease of mature tea plant. The symptom is that there are many green spots on the lower epidermis of tea leaves. Moreover, green and yellow fluorescence can be emitted from the green spots. In order to investigate the cause of this disease, the contents of thirteen mineral elements in the diseased tea leaves that picked from different areas in Shandong province and various tea varieties and degree of disease were analyzed, and then were compared with the contents of the control and the range contents of normal tea leaves to select the elements that are relative to occurring the fluorescent green spot disease of tea plant. On the basis of above results, the hydroponics experimentation for inducing fluorescent green spot disease of tea leaves by applying with different nutrient solutions were designed. The mineral contents in tea leaves in different treatment were determined. Results indicated that ⑴ excessive content of calcium, manganese and aluminum respectively can cause the fluorescent green spot disease of tea plant. ⑵ the fluorescent green spot disease of tea leaves occurred in Shandong province due to the excessive accumulation of calcium and manganese in tea leaves. In addition, the nutritional diagnosis index for excessive content of calcium, manganese and aluminum in tea leaves was discussed.

Key words: tea plant, fluorescent green spot disease, nutrient diagnosis

CLC Number:

YAO Yuan-tao, ZHANG Li-xia, WANG Ri-wei, MI Pei-pei, WANG Jun. Nutritional Diagnosis for the Pathogenesis of Fluorescence Green Spot Disease of Tea Plant[J]. Journal of Tea Science, 2009, 29(2): 144-153.

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Nutritional Diagnosis for the Pathogenesis of Fluorescence Green Spot Disease of Tea Plant

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