| 外源激素与基质对黄果厚壳桂扦插生根的影响 |
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| 引用本文： | 梁小春,黄松殿,姜仪民,赵春梅.外源激素与基质对黄果厚壳桂扦插生根的影响[J].中国农学通报,2021,37(10):24-29. |
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| 作者姓名： | 梁小春 黄松殿 姜仪民 赵春梅 |
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| 作者单位： | 1.广西壮族自治区南宁良凤江国家森林公园/南宁树木园,南宁 530031;2.广西桂嘉林业有限公司,南宁 530031 |
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| 基金项目： | 南宁树木园林业科技项目“优质用材树种科研项目培育与深化”(2019001) |
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| 摘 要： | 为提高黄果厚壳桂扦插生根率和苗木成活率,探讨该树种的扦插生根特性,分析外源激素和基质对扦插的影响,以期为黄果厚壳桂的苗木繁育和树种扩繁提供科学参考。以黄果厚壳桂为研究对象,采用L9(34)正交设计开展扦插试验,通过方差分析、相关分析和主成分分析3种方法阐明外源激素和基质对该树种扦插生根的影响。结果表明,使用黄心土做扦插基质,黄果厚壳桂的扦插生根率最高,达70.0%,显著大于河沙与泥炭土+椰糠。在不同外源激素处理中,IAA处理的枝条扦插生根率和抽梢率最高,分别为66.7%和52.2%。激素浓度为250 mg/L时,扦插生根率最高,并随激素浓度升高而降低,但基部愈伤率效果相反。不同浸泡时间处理对黄果厚壳桂的扦插生根率和基部愈伤率的影响不同,其中30 min处理的生根率最高,而10 min处理的基部愈伤率最高。综合3种统计分析方法的研究结果,以黄心土为扦插基质,使用浓度为250 mg/L的IBA生根液浸泡插穗基部10 min,黄果厚壳桂扦插生根和抽梢效果最好,生根率和抽梢率分别是76.7%和70.0%。
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| 关 键 词： | 黄果厚壳桂 正交试验 外源激素 基质 扦插 |
| 收稿时间： | 2020-07-22 |
Effects of Exogenous Hormones and Substrate on Cutting Rooting of Cryptocarya concinna |
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| Liang Xiaochun,Huang Songdian,Jiang Yimin,Zhao Chunmei.Effects of Exogenous Hormones and Substrate on Cutting Rooting of Cryptocarya concinna[J].Chinese Agricultural Science Bulletin,2021,37(10):24-29. |
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| Authors: | Liang Xiaochun Huang Songdian Jiang Yimin Zhao Chunmei |
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| Institution: | 1.Guangxi Nanning Liangfengjiang National Forest Park/ Nanning Arboretum, Nanning 530031;2.Guijia Forestry Company, Nanning 530031 |
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| Abstract: | To improve the rooting rate and survival rate of the seedlings, the rooting characteristics of Cryptocarya concinna were discussed, and the influence of exogenous hormones and matrix factors on the cutting was analyzed, so as to provide scientific reference for the seedling breeding and tree propagation. The effects of exogenous hormones and substrate on cutting rooting were studied by means of variance analysis, correlation analysis and principal component analysis, using L9(3 4) orthogonal experiment design and taking the species of C. concinna as research objects. The results showed that: taking yellow soil as the substrate, the rooting rate of C. concinna was the highest, up to 70.0%, which was significantly higher than that of river sand, peat soil and coconut. IAA treatment had the highest rooting rate and sprouting rate, up to 66.7% and 52.2%, among different hormone treatments. The rooting rate of cuttings was the highest by the hormone concentration of 250 mg/L and decreased with the increase of hormone concentration, but the basal callus rate was the opposite. The influence of different soaking time on the rooting rate and the basal callus rate of C. concinna was different, with the highest rooting rate in the 30 min treatment and the highest basal callus rate in the 10 min treatment. Based on the results of three statistical analysis methods, it is found that the effect of rooting and sprouting on cutting of C. concinna is the best with the rooting rate of 76.7% and the sprouting rate of 70.0% when the yellow soil is used as the cutting substrate, and IBA rooting solution with a concentration of 250 mg/L is used to soak the base of cuttings for 10 min. |
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| Keywords: | Cryptocarya concinna orthogonal experiment exogenous hormones substrate cutting |
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