桂花作为木犀属代表树种,是我国传统十大花卉之一。在长期的自然演化和人工选择过程中,桂花变异类型非常丰富。但受大多数桂花品种不结实或易败育的限制,在缺少人工繁育的情况下,优良种质性状极易随着母树的死亡而流失,因此建立桂花种质资源库、广泛收集与保存桂花种质资源是保护桂花优良种质资源的有效途径之一。收集保存桂花种质资源可为桂花种质创新提供丰富的育种材料,也可为桂花育种工作提供极大的便利。近几年, Osmanthus osmanthus as representative of tree species, is one of China’s top ten traditional flowers. In the long-term natural evolution and artificial selection process, osmanthus variation type is very rich. However, the majority of Osmanthus fragrans species is not strong or abortion restrictions, in the absence of artificial breeding circumstances, the excellent germplasm traits easily with the loss of the mother tree death, so the establishment of sweet-scented osmanthus germplasm resources, extensive collection and preservation of sweet-scented osmanthus Germplasm resources is one of the effective ways to protect the sweet germplasm resources. Collection and preservation of osmanthus germplasm resources for Osmanthus germplasm innovation can provide abundant breeding materials, but also for osmanthus breeding provides great convenience. recent years,