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Journal of Tea Science ›› 2020, Vol. 40 ›› Issue (5): 625-631.doi: 10.13305/j.cnki.jts.2020.05.008

• Research Paper • Previous Articles     Next Articles

The Comparison of Leaf Structures and Empoasca Onukii Matsuda Honeydew Excretion among Five Tea Cultivars (Strains)

LIU Fengjing1, RAN Wei2,3, LI Xiwang2,3, WANG Suqin4, SUN Xiaoling2,3,*   

  1. 1. Tea Research Institute of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China;
    2. Institute of Tea Research, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    3. Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China;
    4. Shaoxing Economic crop Technology Extension Center, Shaoxing 312000, China
  • Received:2020-07-23 Revised:2020-08-24 Online:2020-10-15 Published:2020-10-10

Abstract: The food consumptions of Empoasca onukii female adults feeding on the leaves of five tea cultivars (strains) were compared by weighing the honeydew excretion after 24 h. The leaf structures and colors of five tea cultivars (strains) were also compared. Further analysis illustrated the relationship between plant resistance to E.onukii and leaf structures. The results show that: (1) the food consumption of female adults feeding on cv. Zhongxuan 10 was significantly lower than those feeding on other cultivars (strains), and there was no significant difference between the male and female adults. (2) The leaf area, blade thickness, upper skin thickness, lower skin thickness and chromatic aberration of different tea cultivars (strains) had little effect on E. onukii’s honeydew excretion. The density of leaf pubescence was negatively correlated to the honeydew excretion, but the length of leaf pubescence had a positive correlation with the honeydew excretion.

Key words: Empoasca onukii Matsuda, tea cultivars (strains), honeydew excretion, leaf structure

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