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榆叶梅采用播种繁殖开花早、不退化,比无性繁殖系数高。方法如下: 采种:榆叶梅5月初开花,7月末种籽成熟,采集后去掉果肉,装布袋吊挂在背阴通风房顶下保管。沙藏:在封冻前,将种籽用40℃温水浸种24小时后捞出,用木箱或花盆作沙藏容器,底铺一层湿沙,上铺一层种籽,反复至容器满。然后在背风向阳的墙根底下挖坑,将木箱或花盆放进去,上覆土15—20厘米厚,清明前起出,用湿水洗掉种壳上的泥沙,再装进花盆,上盖塑料膜,放在温暖的地方催芽。每天上下翻转一次。种壳见干时要喷水。当三分之一或一半种壳裂口时即可播种。
Prunus triloba plum blossom by sowing early propagation, no degradation, higher than the coefficient of asexual reproduction. Methods are as follows: Seeds: Flowering elm flowering in early May, the end of July the seeds mature, remove the flesh after the collection, mounted bags hanging in the shade under the roof custody. Sand reservoir: Before freezing, seeds are soaked in warm water at 40 ℃ for 24 hours and then removed. Sand containers are made of wooden boxes or flowerpots. A wet sand is applied at the bottom and a layer of seeds is spread on the top of the container . Then digging under the leeward sunny wall, put the wooden box or flower pot into the overlying soil 15-20 cm thick, starting before the clear bright, wash off the sediment on the shell with wet water, and then into the flower pot, Cover with plastic film, put in a warm place germination. Flip up and down every day. Seed see the dry shell to spray. Seeds can be sown when one third or one half of the shell breaks.