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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (20): 88-91.doi: 10.11924/j.issn.1000-6850.casb18050122

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Resistance Evaluation of Sugarcane New Varieties to Borers in Sugarcane Seedling Stage

  

  • Received:2018-05-24 Revised:2018-08-16 Accepted:2018-09-03 Online:2019-07-15 Published:2019-07-15

Abstract: Quantification of resistance to borer pest damage in sugarcane varieties is key to application of insect-resistant varieties and discovery of insect-resistant genes. Using natural population inoculation, two years surveys was conducted to analysis the borer damage in 10 new sugarcane varieties at seedling stage and their resistance to borer. The results showed that the borer resistance of different new sugarcane varieties had significant difference. Guitang 29 and Guitang 31 exhibited resistance to borer, and then Funong 39, Dezhe 03-83 and Yunzhe 05-49 were susceptible to borer. Resistance of some new sugarcane varieties varied with the selection pressures of borer. Yunzhe 03-194, Yunzhe 05-51 and Yunzhe 06-407 were susceptible to borer under higher population density of borer, however showed resistant under lower population density.