不同促生剂对红花玉兰娇红2号苗木移栽生长的影响  

Effects of Different Growth Promoters on the Growth of Jiaohong 2 Seedlings after Transplanting

作　　者：王延双 赵秀婷 段劼[1] 马履一[1] 朱仲龙[1] 何宝华 桑子阳 Wang Yan-shuang;Zhao Xiuting;Duan Jie;Ma Lüyi;Zhu Zhonglong;He Baohua;Sang Ziyang(Beijing Forestry University,Beijing 100083,P.R.China;Beijing Xishan National Forest Park;Wufeng Boling Magnolia wufengensis Technology Development Co.Ltd.)

机构地区：[1]北京林业大学,北京100083 [2]北京西山国家森林公园 [3]五峰博翎红花玉兰科技发展有限公司

出　　处：《东北林业大学学报》2021年第5期24-31,39,共9页Journal of Northeast Forestry University

基　　金：五峰博翎红花玉兰科技发展有限公司委托项目(2019HXFWLXY006);林业公益行业专项(201504704)。

摘　　要：娇红2号为红花玉兰系列新品种,具有极高观赏价值,但是红花玉兰娇红2号移栽后缓苗时间较长。为了缩短移栽缓苗期,促进苗木正常生长,尝试对红花玉兰娇红2号施用ABT-1号生根粉和EM菌剂,并分析其苗木生长发育过程,为揭示移栽后苗木生长响应规律及引种推广提供参考。以1年生红花玉兰娇红2号嫁接苗为试验材料,使用不同质量分数的ABT-1号生根粉和EM菌剂进行浸根、浇水试验。设置对照(CK)、A1、A2、A3、A4、B1、B2、B3、B4共9个处理,分别于5月、7月、9月进行生长指标和生理指标测定,分析各处理的苗木生长发育情况。结果表明:各处理与对照相比,苗木根系生长恢复期缩短和结合体内保护酶系统的正向调节,促进了苗木正常生长;A3处理(ABT-1号生根粉)可缩短缓苗期2个月左右,用生根粉处理比EM菌剂处理的效果要好;A3处理(ABT-1号生根粉)能明显促进移栽苗木根系2—3级细根的分化吸收运输水分和营养,并通过提高净光合速率和调节自身保护酶系统活性,促进苗木恢复正常生长状态,缩短缓苗期2个月左右。Jiaohong 2 is a new variety of Magnolia wufengensis, which has extremely high ornamental value. In order to shorten the slow seedling stage and promote the normal growth of seedlings, we tried to apply ABT-1 rooting powder and EM fungicide on Jiaohong 2, and analyzed the growth and development process of its seedlings, so as to provide reference for revealing the growth response law of seedlings after transplanting and for promoting the normal growth of seedlings. Using one-year-old Jiaohong 2 grafted seedlings as the test material, root-soaking and watering tests were performed with different concentrations of ABT-1 rooting powder and EM fungus. By setting control(CK), A1, A2, A3, A4, B1, B2, B3, and B4, we measured growth and physiological indicators in May, July, September(M9), and analyzed the seedling growth and development under each treatment. Compared with CK, the growth recovery period of seedling root system was shortened under each treatment, combined with the positive regulation of the protective enzyme system in the body, all promoted the normal growth of seedlings. By principal component analysis, ABT-1 rooting powder can shorten the slow seedling period for about 2 months. The effect of applying rooting powder is better than that of applying EM fungus. The application of ABT-1 rooting powder can obviously promote the differentiation of transplanted seedling roots of grade 2-3 fine roots to absorb water and nutrients, and promote the recovery of seedlings by increasing the net photosynthetic rate and adjusting the activity of its own protective enzyme system normal growth state, and shorten the slow seedling period for about 2 months.

关 键 词：红花玉兰 娇红2号 ABT生根粉 EM菌剂 根系 

分 类 号：S722.7[农业科学—林木遗传育种] S685.15[农业科学—林学]