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紫花槐(Sophora japonica‘Violacea’)属豆科蝶形花亚科槐属植物,为刺槐变种,广泛分布于我国南北各地,尤以黄土高原及华北平原最常见。因其枝叶繁茂,花穗硕大,花期长而艳丽,为公园、庭院倍受欢迎的观赏树种之一。该树种苗木主要依靠刺槐砧嫁接繁育而来,但由于生产中广泛存在的砧穗选择及嫁接方法不当等问题,导致嫁接后成活率普遍较低。为提高紫花槐嫁接成活率,甘肃省静宁县各苗圃经多年实践,使其嫁接成活率达95%。现将其嫁接技术总结如下,供生产参考。
Sophora japonica’Violacea ’belongs to the genus Sophora japonica variola, which is widely distributed in north and south China, especially in Loess Plateau and North China Plain. Because of its lush foliage, huge flower spikes, long and beautiful flowering, the park, the courtyard one of the popular ornamental trees. The tree seedlings mainly rely on Robinia pseudoacacia grafted from breeding, but due to the widespread production of scion selection and inappropriate grafting methods and other issues, resulting in a generally low survival rate after grafting. In order to improve the survival rate of grafted Sophora japonica, the nurseries of Jingning County, Gansu Province, have been practiced for many years to make the grafting survival rate reach 95%. Grafting technology now summarized below, for the production of reference.