Journal of Northeast Forestry University

, Volume 7, Issue 3, pp 13–18 | Cite as

Study on the host biological induced resistance of bacterial canker of poplar

  • Song Ruiqing


This is the first time that biological induced resistance has been used in the research of the bacterial canker on poplar. After inoculated with less-aggressive strains, middle-aggressive strains and non-aggressive strains (high-aggressive strains have been treated with 400W ultraviolet lamp for 30 min on super-clean working table) poplar seedlings have been inoculated with high-aggressive strains. The results of those experiments shown that strain 3 (from Suihua, Heilongjiang)and strain 9 (from Liaoning) can significantly enhance the activities of the peroxidase of host, and the effects of twice inoculation were much better than that of once inoculation. 7.1% and 4.0% of the peroxidase activities have been enhanced respectively in the seedlings which were twice inoculation with strains 3 and strains 9. 1.1% and 1.2% of the peroxidase activities have been enhanced by inoculated strains 3 and strains 9 once into seedlings.

Key words

Bacterial canker of poplar Host biological induced resistance 


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Copyright information

© Northeast Forestry University 1996

Authors and Affiliations

  • Song Ruiqing
    • 1
  1. 1.Northeast Forestry UniversityHarbinChina

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