毛白杨是我国北方的速生乡土树种,栽培面积大,地位重要。然而,这一树种因繁殖困难而限制了它的推广。本文报道的育苗技术是在毛白杨根繁技术的基础上发展起来的,将遗传育种思路和组培思路结合起来应用于大田育苗之中,完善成多圃配套育苗。这种育苗技术将原种苗与生产苗分开,保? Populus tomentosa is a fast-growing native tree species in northern China with a large cultivated area and an important status. However, this species has limited its promotion due to reproductive difficulties. The seedling raising technique reported in this article was developed on the basis of the rooting technique of Populus tomentosa. The idea of ​​genetic breeding and the method of tissue culture were combined to apply in field nursery and improve the breeding of multi-nursery. This seedling technology will be the original seedlings and production of seedlings separated, Paul?