To test the resistance of 10 existing poplar varieties in Zhanggutai to poplar canker disease,a pathogenic bac-teria inoculation experiment was conducted on the hydroponic branches of these varieties using the burn inoculation method to simulate the conditions in the forest.The results showed that among the 10 tested poplar varieties,the lesion of Populus pseudo-simonii developed rapidly and caused the most serious damage;P.×xiaozhuanica cv.'Zhangwu'pro-duced the most conidial horns and had strong ability to spread pathogenic bacteria;P.×canadensis'Robusta'did not de-velop lesions or produce conidial horns after inoculation with pathogenic bacteria,indicating that P.×canadensis'Ro-busta'had the strongest resistance to poplar canker disease.Therefore,P.×canadensis'Robusta'could be considered as an updated variety of poplar to improve the disease resistance and ecological stability of the forest.
维普
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