连续环剥或过量应用PP 333加重轮纹病的发生。
Continuous circular peeling and surplus application of PP333 aggravated the disease.
结果表明，烧伤柳茎或盐胁柳根引起的变异电波，可以通过环剥后的木质部再横向传递至韧皮部（树皮），被表面电极记录下来。
The result declares that transmission of VP in willow stem (salix babylonica) plantlet can be evoked by treating the wood with Naclsolution or by a local burn on the stem.
为研究对象，对其主干进行大面积环剥，田间连续观察剥面愈合率和树干外观变化，寻求有利于新皮发生的技术措施。
Through observing the healing rate and changing of trunk appearance after large-area skinning in succession in the fields, some technical measures to help to develop new bark were sought.
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