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P. massoniana showed fast height growth but poor natural trimming , crooked bole, low insect pest resistance.
而马尾松的树高生长虽然较快，但自然整枝较差，树干不通直，且虫害较严重，抗性差；
youdao
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P. massoniana showed fast height growth but poor natural trimming , crooked bole, low insect pest resistance.
而马尾松的树高生长虽然较快，但自然整枝较差，树干不通直，且虫害较严重，抗性差；
youdao