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Journal of Integrative Agriculture  2012, Vol. 12 Issue (12): 2028-2034    DOI: 10.1016/S1671-2927(00)8740
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Evaluation of the Resistance of Different Tea Cultivars to TeaAphids by EPG Technique
 LIANG  Li-yun, LIU  Li-fang, YU  Xiao-ping , HAN  Bao-yu
1.College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, P.R.China
2.Zhejiang Provinvial Key Laboratory of Bio-Metrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, P.R.
China
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摘要  In order to investigate the resistance of tea plant to tea aphid, the feeding behavior of tea aphids on six different tea cultivars was monitored by (EPG) technique. The result showed that the duration of E1, E2 as well as (E1+E2) which was feeding waveforms of Toxoptera aurantii (Boyer) in tea phloem was significantly different by variance analysis (P<0.05) and so did the duration of the probing of T. aurantii in all the tea tissues. And the six tea cultivars were classified into three groups with cluster analysis, based on the six major parameters which were durations of np, C, E1, E2, F, and G waveforms, then the six major parameters of these three groups were detected by variance analysis, and the rank of six different tea cultivars’ resistance to T. aurantii from strong to weak was Zhongcha 108, Sucha 1, Anjibaicha, Longjing 43, Xicha 5, and Sucha 120. As this result was in accord with the investigation into the tea field, we concluded that EPG technique was one of the most important means to examine tea plant resistance to T. aurantii and the durations of waveform E1, E2 and (E1+E2) were important parameters for evaluating resistance of tea plants to tea aphids.

Abstract  In order to investigate the resistance of tea plant to tea aphid, the feeding behavior of tea aphids on six different tea cultivars was monitored by (EPG) technique. The result showed that the duration of E1, E2 as well as (E1+E2) which was feeding waveforms of Toxoptera aurantii (Boyer) in tea phloem was significantly different by variance analysis (P<0.05) and so did the duration of the probing of T. aurantii in all the tea tissues. And the six tea cultivars were classified into three groups with cluster analysis, based on the six major parameters which were durations of np, C, E1, E2, F, and G waveforms, then the six major parameters of these three groups were detected by variance analysis, and the rank of six different tea cultivars’ resistance to T. aurantii from strong to weak was Zhongcha 108, Sucha 1, Anjibaicha, Longjing 43, Xicha 5, and Sucha 120. As this result was in accord with the investigation into the tea field, we concluded that EPG technique was one of the most important means to examine tea plant resistance to T. aurantii and the durations of waveform E1, E2 and (E1+E2) were important parameters for evaluating resistance of tea plants to tea aphids.
Keywords:  Toxoptera aurantii      EPG parameters      cluster analysis      tea plant resistance  
Received: 18 May 2012   Accepted:
Fund: 

This study were financially supported by the National Natural Science Foundation of China (31071744), the Natural Science Foundation of Zhejiang Province, China (Y3100375). Thank China Jiliang University for providing test equipments.

Corresponding Authors:  Correspondence HAN Bao-yu, Tel: +86-571-86835706, Fax: +86-571-86914449, E-mail:han-insect@263.net     E-mail:  han-insect@263.net
About author:  LIANG Li-yun, Mobile: 15838191032, E-mail: molixiang23@126.com

Cite this article: 

LIANG Li-yun, LIU Li-fang, YU Xiao-ping , HAN Bao-yu. 2012. Evaluation of the Resistance of Different Tea Cultivars to TeaAphids by EPG Technique. Journal of Integrative Agriculture, 12(12): 2028-2034.

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