西南桦冬季落叶插穗容器扦插育苗技术研究

通过试验设计研究西南桦母株不同部位剪取的插穗(A)、不同基部径粗的插穗(B)及不同长度的插穗(C)对西南桦冬季落叶插穗容器扦插生根率、生根数及生根长的影响差异,比较了不同插穗下切口型(D)、不同轻型基质网袋容器(E)对西南桦冬季落叶插穗扦插生根率的影响差异。结果表明:西南桦母株中部剪取的插穗(A2)+基部径粗在2.1mm~3.0mm的插穗(B2)+长度16cm的插穗(C3)组合最好,其生根率高、生根数多且生根长;不同插穗下切口型的扦插试验中,以双削面(D3)最好;不同轻型基质网袋容器的扦插试验中,以E8最佳。

Research on Containerized Cuttage Seedling Raising Technology for Betula alnoides

Experiments and research work are conducted on the scions taken from different parts of the mother trees and the scions with different base diameters and different lengths, which have different impacts on rooting rate, number and length of the roots. Comparative tests are also done for the impacts of different cuttings and net bag containers on the rooting rate of the scions. The results show that the scions taken from the middle parts of the mother tree with the base diameter at 2.1mm-3.0mm and the length at 16cm perform best, which yield high rooting rate, more and longer roots.