在福建省浦城县水南李梅进行的马尾松大田苗切根培育技术试验研究结果表明：切根培育的苗木，其侧须根总长度、条数、根系鲜重、根茎比等均比未切根对照的增加近一倍，差异极显著，菌根感染率也较高，主根长度却仅为未切根培育的１／４．切根在一定程度上促进径粗生长，降低高茎比，促进根系发达，降低冠根比，达到优质壮苗． In Pucheng County, Fujian Province plum plum Masson seedling cutting experiment showed that: nursery seedlings cut, the total length of lateral fibrous roots, the number of roots, root fresh weight, rhizome ratio than uncut Roots nearly doubled the control, the difference was extremely significant, mycorrhizal infection rate is also higher, the length of the main root is only uncut rooted breeding 1/4. Cut root to a certain extent, promote coarse diameter growth, reduce high stem ratio, promote root development, reduce crown to root ratio, to achieve high quality seedlings.