不同种类及浓度的植物生长调节剂对具鳞水柏枝扦插生根的影响  

Effects of Different Plant Growth Regulators and Their Concentrations on Rooting of Myricaria squamosa Cuttings

作　　者：李波[1,2] 魏科宇 王丽华 Li Bo;Wei Keyu;Wang Lihua(CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization/Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province/Chengdu Institute of Biology,Chinese Academy of Sciences,Chendu Sichuan 610041,China;College of Resources and Environment,Aba Teachers University,Aba Sichuan 623002,China)

机构地区：[1]中国科学院山地生态恢复与生物资源利用重点实验室,生态恢复与生物多样性保育四川省重点实验室,中国科学院成都生物研究所,四川成都610041 [2]阿坝师范学院资源与环境学院,四川阿坝623002

出　　处：《西南林业大学学报（自然科学）》2021年第1期33-38,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：四川省科技厅重点研发项目(18ZDY0307)资助;中国科学院山地生态恢复与生物资源利用重点实验室开放性课题(KXYSWS1605)资助;四川省科技创新苗子工程(2018131)资助。

摘　　要：为探讨不同种类及浓度的植物生长调节剂对具鳞水柏枝嫩枝扦插生根效果,以1年生具鳞水柏枝当年生嫩枝为研究对象,采用完全随机分组设计,以不同浓度梯度的3种植物生长调节剂处理插穗,对比和分析不同处理下的生根率及其根系相关指标。结果表明:短时间内,IBA能够有效地提高具鳞水柏枝的生根速度及效率;植物生长调节剂下的生根率顺序为SA>IBA> CK> NAA,其生根效果之间不存在显著性差异;使用50 mg/L NAA处理插穗,生根系数量显著高于其他处理组,达16.68条。可见,植物生长调节剂对具鳞水柏枝嫩枝扦插效果显著,但不同生长调节剂生根效果存异,其中50 mg/L IBA对具鳞水柏枝嫩枝生根效果最佳。In order to study the rooting effect of different plant growth regulators on shoot cuttings of Myricaria squamosa, one-year-old cuttings of M. squamosa in the same year were selected as the research object, adopted completely randomized design and the cuttings were treated with 3 kinds of plant growth regulators with different concentration gradients. The rooting rates and root related indexes under different treatments were compared and analyzed. The results showed that IBA could effectively improve the rooting rate and efficiency of M.squamosa in a short time, and the rooting rate under plant growth regulators was SA > IBA > CK > NAA. The number of roots of cuttings treated with NAA 50 mg/L was 16.68, which was significantly higher than that of other treatments. It can be seen that plant growth regulators have significant effect on softwood cuttings of M.squamosa, but the rooting effects of different growth regulators are different, and the concentration of IBA 50 mg/L has the best effect on the rooting of cuttings of M. squamosa.

关 键 词：具鳞水柏枝 嫩枝 扦插 植物生长调节剂 浓度 生根 

分 类 号：Q945.79[生物学—植物学]