不同基质对苦郎树嫩枝扦插的影响
2020-03-31陈智涛刘德浩廖文莉舒夏竺邓仿东
陈智涛 刘德浩 廖文莉 舒夏竺 邓仿东



摘要 [目的]对苦郎树扦插繁殖技术进行研究,使其在短期内快速扩繁。[方法]以苦郎树的当年生枝条为材料,剪取中上部枝条作插穗,以黄心土、泥炭土、珍珠岩、黄心土+泥炭土(1∶1)为基质,研究不同基质对苦郎树嫩枝扦插的影响。[结果]不同基质对苦郎树的扦插成活率、梢长、生根数量及根系生长有明显的影响。珍珠岩处理的扦插成活率最高,泥炭土处理对生根数量、梢长、根长效果最好。[结论]适宜苦郎树的扦插基质为泥炭土。
关键词 基质;苦郎树;嫩枝扦插
中图分类号 S 723.1+32文献标识码 A文章编号 0517-6611(2020)04-0106-02
doi:10.3969/j.issn.0517-6611.2020.04.031
开放科学(资源服务)标识码(OSID):
Effects of Different Substrates on Softwood Cutting of Clerodendrum inerme
CHEN Zhi-tao, LIU De-hao, LIAO Wen-li et al
(Huizhou Institute of Forestry, Huizhou,Guangdong 516001)
Abstract [Objective]To study the cutting propagation technology of Clerodendrum inerme in order to make it expand rapidly in a short time. [Method]The middle and upper branches of C. inerme were cut as cuttings, and the effects of no substrate on tender branch cutting of C. inerme were studied using loess, peat soil, perlite, loess and peat soil (1∶1) as substrates. [Result]Different substrates had significant effects on the survival rate, shoot length, rooting number and root growth of C. inerme. Perlite treatment had the highest survival rate of cutting, and peat soil treatment had the best effect on rooting quantity, shoot length and root length. [Conclusion]The suitable cutting medium for C. inerme is peat soil.
Key words Substrate;Clerodendrum inerme;Softwood cutting
苦郎樹(Clerodendrum inerme)属马鞭草科(Verbenaceae)大青属(Clerodendrum),攀援状灌木,直立或平卧,高可达2 m,自然分布于热带、亚热带的海岸、河滩和潮汐地,是营建沿海防护林的优良树种[1-4]。苦郎树的枝、叶、根均可入药,常被用来治疗多种不同的疾病,枝、叶入药用于治疗跌打损伤、血瘀肿痛、疮癣疥癞、湿疹瘙痒等[5-7]。此外,它还是一种常用的苦味补药。其临水生长的独特特点导致种子收集困难,笔者拟对苦郎树嫩枝开展扦插研究,旨在筛选出较适宜其嫩枝扦插繁殖的基质,为其快速扦插繁殖提供依据。
1 材料与方法
1.1 试验地概况
试验地设在惠州市林业科学研究所苗圃内,属亚热带季风气候区。年平均降水量2 200 mm,年平均气温22 ℃。试验时间为2017年3—8月,此期间雨量充沛,光照充足。
1.2 材料
1.2.1 插穗。
材料采用惠州市林业科学研究所培育的3年生苦郎树实生苗,选取生长旺盛、无病虫害的当年生枝条作为材料。……
