The easiest way to propagate a vine is to take hardwoodcuttings.
繁殖葡萄藤最容易的办法就是采取硬木扦插。
《柯林斯英汉双解大词典》
2
The experiments showed that the rooting ability of hardwoodcuttings was determined by both presence of latent root primodia and balance of endogenous hormones bark.
试验表明，硬枝扦插生根是潜伏根原基存在与否和皮部内源激素平衡两方面的原因决定的。
3
On the basis of these experiments, this paper determined the contents of endogenous plant hormones levels in hardwood and shoot cuttings.