The results indicate that triploid populus tomentosa carr.branch is superior to sect.Aigeiros in populus branch and straw material despite that it is inferior to triploid populus tomentosa carr.trunk.

• 结果表明:尽管三倍体毛白杨枝桠材不如三倍体毛白杨枝桠材主干优秀,但还是优于黑杨枝桠材和草类原料。