病菌从伤口进入导管后菌丝向上扩展的速度在抗病品种中较感病品种中慢，原因可能在于导管分子类型不同；
The hypha expansion upward in the vessels of resistant cultivar was slower than that of susceptible one as result of limitation from short vessel elements.
病菌从伤口进入导管后菌丝向上扩展的速度在抗病品种中较感病品种中慢，原因可能在于导管分子类型不同；
The hypha expansion upward in the vessels of resistant cultivar was slower than that of susceptible one as result of limitation from short vessel elements.
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