泓森槐根插繁育技术及适应性研究

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中图分类号：S792.26 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.04.016

Study on Root Cutting Propagation Technology and Adaptability of Robinia pseudoacacia

He Zhilong 1，2 ，Teng Yufeng1.² ，Su Furong 1，2 ，He Jing1，²，He Yu1，3 （1.Zhangye Academy of Forestry，Zhangye 734Ooo，China; 2. Collaborative Innovation Base of Zhangye Academy of Forestry，Zhangye 7340oo，China; .Shandan Horse Farm Natural Protection Station of Gansu Qilian Mountain Nature Reserve，Zhangye 7340o，China）

Abstract In order to master the root cuting propagation technology of Robinia pseudoacacia ，by using the coarse roots of the 2-year-old excellent parent tree of this tree species，the cuting seedling experiment in nutrient bags was caried out with different types of rooting agents，different massfractions，and different soaking durations.The results showed that Robinia pseudoacacia was easy to root when propagated by root cuttings. Rooting began 18 days after cutting，andno terminal buds formed at theupper endof thecuttings.From 22 to 25daysafter cuting，terminal buds germinated and new shoots started to grow. The optimal treatment combination was soaking in a 100mg⋅ （204号 （2 L-1 naphthalene acetic acid （NAA） solution for 2 hours，which showed the best performance in rooting quantity，average root length，and rooting rate among alltreatments.This tree species can be transplanted in the same year as cuting in Zhangye，with rapid seedling growth，demonstrating excellent fast-growing characteristics and adaptability.

Key words Robinia pseudoacacia ;root cutting;adaptability;research

泓森槐（Robiniapseudoacacia‘Hong sen'）为蝶形花科刺槐属落叶乔木，是通过大量表型选优、多年多点无性系测定和区域性试验筛选出来的优良速生刺槐。（剩余3545字）