裂叶榆(Ulmus laciniata Mayr.)又称车瓜榆、大叶榆,属榆科,高大落叶乔木,材质坚硬有弹性,耐腐、耐水湿、纹理美观,为车辆材、胶合板、家俱的良好材种,用途较广,深受群众喜爱,是我省珍贵阔叶树种之一。裂叶榆过去主要依靠天然繁殖,近年来由于人们利用的多,又未及时进行人工繁育,致使裂叶榆资源日益减少。但目前国内对裂叶榆繁育技术试验极少,育苗技术比较困难。为了探讨裂叶榆播种育苗技术,发展 Ulmus laciniata Mayr. Also known as car melon, big leaf elm, is an elm, tall deciduous trees, hard and flexible material, corrosion resistance, water wet, beautiful texture, for the vehicle material, plywood, furniture, good Wood species, uses a wide range, loved by the masses, is one of the province’s precious broad-leaved species. Cracked leaf elm in the past mainly rely on natural breeding, in recent years due to the use of more people, but not timely artificial breeding, resulting in declining resources of Crataegus pumila. However, at present, there are few experiments on the breeding technology of Crassulaceae, and it is difficult to cultivate seedlings. In order to explore Crassulaceae seeding seedling technology, development