LIU Qunlong,WU Xinyan,ZHANG Simin,et al.Effect of Hormone and Substrates on the Rooting of Cornus alba L.in the Container[J].Northern Horticulture,2015,39(18):73-77.[doi:10.11937/bfyy.201518020]
激素和基质对红瑞木硬枝容器扦插生根的影响
- Title:
- Effect of Hormone and Substrates on the Rooting of Cornus alba L.in the Container
- Keywords:
- Cornus alba L.; hardwood; container cutting; hormone; substrates; rooting
- 文献标志码:
- A
- 摘要:
- 以红瑞木1年生硬枝为试材，采用单因素完全随机区组设计，选用NAA、IBA和ABT 1号生根粉3种激素（浓度均为0、50、100、150 mg/L）及4种基质进行扦插试验，研究激素和基质对红瑞木硬枝容器扦插生根的影响。结果表明：用NAA浸泡插穗2 h，其适宜的浓度为100 mg/L，生根率可达94.43%，平均根长2.98 cm，平均根系数量37.95条，根系效果指数3.78，分别较对照极显著提高1.33、2.46、2.46、6.10倍；用IBA浸泡插穗2 h，适宜的浓度为150 mg/L，生根率、平均根长、平均根系数量和根系效果指数分别为95.57%、1.85 cm、31.80条和1.96，分别较对照极显著提高1.34、1.53、2.06、3.16倍；但用ABT 1号生根粉浸泡插穗2 h，适宜的浓度为150 mg/L，生根率、平均根长、平均根系数量和根系效果指数仅为84.43%、2.13 cm、16.23条和1.15。适宜红瑞木硬枝扦插的基质为泥炭∶珍珠岩∶蛭石=1∶1∶1（V∶V∶V），其生根率达到100%，平均根长3.72 cm，平均根系数量35.13条，根系效果指数6.55。由此可见，红瑞木硬枝容器扦插时，适宜用100 mg/L NAA浸泡插穗2 h，并采用泥炭∶珍珠岩∶蛭石=1∶1∶1的扦插基质，效果最佳。
- Abstract:
- The effect of different hormone types，which include NAA，IBA and ABT 1 with the concentrations of 0，50，100 and 150 mg/L，and four kinds of substrates on the rooting of the one-year-old branches of the Cornus alba L.were studied by using single factor randomized block design.The results showed that，the most appropriate concentration of NAA was 100 mg/L when the branches were soaked for 2 hours，the rooting rate was 94.43%，the average root length was 2.98 cm，the average root number was 37.95 and the root effective indexes was 3.78，which were 1.33，2.46，2.46 and 6.10 times than that of the control respectively；the most appropriate concentration of IBA was 150 mg/L when the branches were soaked for 2 hours，the rooting rate was 95.57%，the average root length was 1.85 cm，the average root number was 31.80 and the root effective index was 1.96，which were 1.34，1.53，2.06 and 3.16 times than that of the control respectively；soaking the branches in the ABT 1 for 2 hours，the most appropriate concentration was 150 mg/L，but the rooting rate，the average root length，the average root number and the root effective indexes were only 84.43%，2.13 cm，16.23 and 1.15 respectively.Peat∶perlite∶vermiculite=1∶1∶1(V∶V∶V) was the most suitable substrates，the rooting rate was 100%，the average root length was 3.72 cm，the average root number was 35.13 and the root effective index was 6.55.Therefore，100 mg/L NAA and 1 peat∶1 perlite∶1 vermiculite should be used for the cutting propagation of the Cornus alba L.in order to achieve the best rooting effect.
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备注/Memo
第一作者简介：刘群龙（1974-），男，博士，副教授，现主要从事园艺植物种质创新和良种繁育等研究工作。E-mail：lql0288@126.com. 基金项目：国家林业局引进国际先进林业科学技术资助项目（2012-4-67）。