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Volume 27 Issue 8
Nov.  2012
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Article Contents
GAO Xiang-feng, WANG Qing-sen, CHEN Chang-song. The Preliminary Research of the Selectivity of Tea Aphids on Germplasms Suitable for Processing Oolong Tea[J]. Fujian Journal of Agricultural Sciences, 2012, 27(8): 835-840.
Citation: GAO Xiang-feng, WANG Qing-sen, CHEN Chang-song. The Preliminary Research of the Selectivity of Tea Aphids on Germplasms Suitable for Processing Oolong Tea[J]. Fujian Journal of Agricultural Sciences, 2012, 27(8): 835-840.

The Preliminary Research of the Selectivity of Tea Aphids on Germplasms Suitable for Processing Oolong Tea

  • Received Date: 2012-07-24
  • Rev Recd Date: 2012-08-08
  • Publish Date: 2012-08-30
  • The population dynamics of aphids on different cultivars were investigated in the field and net in two consecutive years respectively, and the selectivity of tea aphid on fourteen tea cultivars which are suitable for processing oolong tea in Fujian province was compared. The results showed that: ①The selectivity of tea aphid was significantly different on each cultivars in the field and net, and it was not consistent with each other in two years, but the consistency on the aphid shoot rate(%), aphid number ratio and aphid sentiment index in net were larger than that in the field in two years. ②It is feasible to use three indicators of aphid shoot rate(%), aphid number ratio, aphid sentiment index to measure the selectivity of tea aphid on different tea cultivars, for the trends on different cultivars were consistent with the changes of time basically. ③Clustering analysis of fourteen tea cultivars suitable for processing oolong tea was conducted based on aphid shoot rate(%), aphid number ratio and aphid sentiment index, and the changes of which in net was used as indicators in two years. Our results suggest that Bai Ji Guan and Dan Gui belong to a category respectively, which are susceptible to tea aphid; Mao Xie and Bai MuDan belong to the same category, which are resistance to aphid; and other cultivars belong to the intermediate type.
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