| 常用促根生长调节剂对闽楠高空压条生根的影响 |
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| 引用本文： | 郑雨盼,杨锦昌,邹文涛,王旭,余纽,刘晓东,赖旭恩,李荣生.常用促根生长调节剂对闽楠高空压条生根的影响[J].热带作物学报,2020,41(9):1803-1807. |
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| 作者姓名： | 郑雨盼 杨锦昌 邹文涛 王旭 余纽 刘晓东 赖旭恩 李荣生 |
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| 作者单位： | 1.中国林业科学研究院热带林业研究所/国家林草局热带林业研究重点实验室,广东广州 5105202.南京林业大学,江苏南京 2100373.乐昌市龙山林场,广东乐昌 512221 |
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| 基金项目： | 广东省林业科技创新项目(2018KJCX020);“十三五”国家重点研发计划课题“楠木高效培育技术研究”(2016YFD0600603) |
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| 摘 要： | 闽楠（Phoebe bournei）是我国乡土珍贵用材造林树种。本研究以6年生闽楠幼树的枝条为试材,采用随机区组试验设计,分别开展单种促根生长调节剂和混合促根生长调节剂高空压条试验,研究不同浓度植物生长调节剂对其高空压条生根的影响。结果表明,在吲哚乙酸、吲哚丁酸和萘乙酸3种促根生长调节剂中,萘乙酸为压条最适生长素,1000 mg/L萘乙酸处理组生根效果最佳,生根率为54.67%;对吲哚丁酸和萘乙酸混合的ABT1#生根粉而言,1000 mg/L为最适处理浓度,该处理浓度下压条的最大一级根长和根生物量皆优于对照。可见,闽楠幼树高空压条宜施用1000 mg/L的萘乙酸或ABT1#生根粉。
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| 关 键 词： | 闽楠 高空压条 ABT1#生根粉 吲哚乙酸 吲哚丁酸 萘乙酸 |
| 收稿时间： | 2019-10-22 |
Effects of Rooting Plant Growth Regulators on Rooting of Air-layers of Phoebe bournei |
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| ZHENG Yupan,YANG Jinchang,ZOU Wentao,WANG Xu,YU Niu,LIU Xiaodong,LAI Xuen,LI Rongsheng.Effects of Rooting Plant Growth Regulators on Rooting of Air-layers of Phoebe bournei[J].Chinese Journal of Tropical Crops,2020,41(9):1803-1807. |
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| Authors: | ZHENG Yupan YANG Jinchang ZOU Wentao WANG Xu YU Niu LIU Xiaodong LAI Xuen LI Rongsheng |
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| Institution: | 1. Research Institute of Tropical Forestry, Chinese Academy of Forestry / Key Laboratory of National Forestry and Grassland Administration on Tropical Forestry Research, Guangzhou, Guangdong 510520, China2. Nanjing Forestry University, Nanjing, Jiangsu 210037, China3. Longshan Forest Farm of Lechang, Lechang, Guangdong 512221, China |
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| Abstract: | Phoebe bournei is a precious and endemic tree cultivated in China. To explore the effects of growth regulators on rooting of P. bournei, research was conducted with different concentrations by a randomly complete block design. Single root stimulator, i.e., indole acetic acid (IAA), indole-3-butyric acid (IBA) and naphthalene acetic acid (NAA), and mixed root stimulators namely ABT1#rooting powder were applied to the 6-year-old branches. NAA was the optimum auxin for rooting of the air-layered branches, and the branches treated with 1000 mg/L had the highest rooting rate of 54.67%. For ABT1# rooting powder consisted of IBA and NAA, 1000 mg/L was the optimal concentration, and the maximum first-order root length and root biomass of the air-layered branches at the concentration were better than that of the control. It is concluded NAA or ABT1# rooting powder was recommended to be applied at the level of 1000 mg/L in the air layering for saplings of P. bournei. |
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| Keywords: | Phoebe bournei air layering ABT1# rooting powder IAA IBA NAA |
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