摘要
以亚美马褂木优良品种为对象,采穗圃当年生穗条作插穗,研究了扦插季节、基质、植物生长调节剂等对生根的影响。研究结果表明:(1)不同季节扦插生根率显著不同,夏季扦插生根率最高为57.3%,其次是秋季扦插(40.3%),生根率最低是春季扦插(24.7%)。(2)不同扦插基质生根率差异极显著,珍珠岩+蛭石+河沙(1∶1∶1)为基质的生根率最高为65.1%,其次为蛭石+河沙(1∶1)(59.6%)、珍珠岩+河沙(1∶1)(52.3%)、河沙(51.9%)、泥炭土(40.3%)、黄土(33.5%)。(3)ABT1号、GGR7号、911、NAA、IBA等5种植物生长调节剂对扦插生根率具有极显著的影响,从植物生长调节剂整体效果来看ABT1号>NAA>GGR7号>IBA>911;处理时间的效果是1h>3h>10s>6h。1000 mg·L^(−1)ABT1号处理1h生根率最高达88.8%。
The excellent varieties of Liriodendron sino-americanum were selected as the study object,the cuttings of the current year in the cutting orchard were used as the cuttage,and the effects of cutting season,substrate and plant growth regulators on rooting of Liriodendron sino-americanum were studied.The results showed that:(1)The rooting rate of cuttage varied significantly in different seasons,with the highest rooting rate being 57.3%in summer,followed by autumn(40.3%)and spring(24.7%).(2)There were significant differences in rooting rates among different cutting media.The rooting rate of perlite+vermiculite+river sand(1∶1∶1)was the highest(65.1%),followed by vermiculite+river sand(1∶1)(59.6%),perlite+river sand(1∶1)(52.3%),river sand(51.9%),peat soil(40.3%)and loess(33.5%).(3)Five kinds of plant growth regulators,such as ABT1,GGR7,911,NAA and IBA,had very significant effects on cutting rooting rate.Based on the overall effect of plant growth regulators,ABT1>NAA>GGR7>IBA>911,and the effect of treatment time was 1h>3h>10s>6 h.The highest rooting rate was 88.8%when treated with ABT11000 mg·L^(−1) for 1 h.
作者
管兰华
蒋祥娥
蔡桁
徐红梅
王建
陈红林
吴银波
杨寒
曹健
GUAN Lanhua;JIANG Xiang’e;CAI Heng;XU Hongmei;WANG Jan;CHEN Honglin;WU Yinbo;YANG Han;CAO Jian(Forest Tree seed and Seedling Administrative General Station of Hubei Forestry Department,Wuhan 430079,China;Hubei Academy of Forestry,Wuhan 430075,China)
出处
《四川林业科技》
2022年第1期97-101,共5页
Journal of Sichuan Forestry Science and Technology
基金
湖北省林业科技支撑重点项目“湖北省优良乡土珍稀树种选育体系建设”([2017]LYKJ04)。
关键词
亚美马褂木
采穗圃
季节
基质
植物生长调节剂
Liriodendron sino-americanum
Cutting orchard
Season
Substrate
Plant growth regulator
作者简介
管兰华(1974—),男,教授级高级工程师,博士,6096281515@qq.com;通信作者:曹健,970240630@qq.com。
