沈登锋 魏斌 洪春桃 章建红

摘 要：红叶南天竹作为新型的彩叶灌木，目前需求巨大，为保证种苗的供应进行扦插试验研究。共选择IAA、NAA、 ABT1号、ABT2号等4种生根促进剂，研究其对红叶南天竹生根率、新叶数及生根数量的影响。结果表明：红叶南天竹属较易生根植物，经不同生根促进剂的处理后，成活率存在着显著差异，平均成活率为72%，其中NAA处理插穗的成活率最低，仅为19.6%；新叶发生数无显著差异，平均为2.83片；各生根剂与清水处理相比，在生根数目上存在显著差异，对生根有促进作用。综合各个指标，得出ABT1号为最佳处理，可在生产中广泛应用。

关键词：红叶南天竹；扦插；生根促进剂

中图分类号：S615 文献标识码：A DOI 编码：10.3969/j.issn.1006-6500.2016.05.023

Effects of Different Rooting Accelerators on Cultivating Cuttage Seedling of Nandina domestica Hongye

SHEN Dengfeng， WEI Bin， HONG Chuntao， ZHANG Jianhong

（Research Institute of Forestry，Ningbo Academy of Agricultural Sciences， Ningbo， Zhejiang 315040， China）

Abstract： As a new introduced shrub with colorful leaves， there is a large demand of Nandina domestica 'Hongye'. To guarantee the supply of brilliant seedings， the experiment of cuttage was conducted. There were four kinds of rooting accelerators selected in this study， such as IAA， NAA， ABT1 and ABT2， they were used to evaluate effects on rooting rate， leaf number， root number. The result showed that Nandina domestica 'Hongye' is a rooting easily species. After treatment of different rooting accelerators， there was dominant difference among treatments， average survival rate was 72%. For leaf number， all four treatments were in the same level， average leaf number was 2.83. Compared with water treatment， there was dominant difference， all the rooting accelerators had acceleration on root numbers. Over all consideration， ABT1 was the best treasure in large scale production of seeding.

Key words： Nandina domestica 'Hongye'； cottage； rooting accelerator

南天竹是我国亚热带地区的乡土树种，属小檗科南天竹属植物，属下仅一个种。其园艺性状表现为春夏翠绿扶疏， 秋冬红果累累，还具有抗旱、抗风、抗高温、抗严寒、抗雪压、抗病虫害能力强等特点，萌芽能力强，易于繁殖，是优良的观叶、观果植物，无论地栽还是制作盆景， 都具有很高的观赏价值[1]。南天竹为种子实生繁殖，种内变异类型丰富，产生白果南天竹、玉果南天竹、五彩南天竹等新型变异。红叶南天竹是南天竹种内的一个变型，是由浙江森禾股份有限公司从南天竹群体中选育出来的[2]，经单株组织培养形成的无性系群体，具有很高的观赏价值。其特征为常绿直立灌木，最高可达120 cm，枝叶浓密，树形紧凑，叶互生，2至3回单数羽状复叶，小叶先端钝尖，秋冬季叶片艳红，为优良观叶观果树种。……