Magnolia grandiflora L. (southern magnolia) is an evergreen tree native to the southeastern US. It is a popular and important landscape plant and shade tree because of its glossy green leaves and large white fragrant flowers. So far its clonal propagation has mainly relied on grafting and rooting of stem cuttings has rarely been reported although it has been introduced and cultivated for more than one hundred years in China. To meet the increasing of market demands on the clonal reproduction, we carried out the stem cutting propagation in March...
