不同浓度植物生长调节剂GGR7号对宁杞1号嫩枝扦插成苗的影响

目的]优化宁杞1号嫩枝扦插技术,为当地农业生产提供可行性支持。方法]以清水为对照,研究50、100、150、200 mg/L GGR7号对宁杞1号插条成活率、平均根数、平均根长、平均根粗、平均新枝数、平均新枝长、根构型及生根部位的影响。结果]GGR7号可提高宁杞1号枝条的生根速度、成活率、新枝长度,降低根粗。GGR7号可抑制宁杞1号插条多生根,而随着处理浓度的升高,抑制作用逐渐解除。高浓度（≥150 mg/L）GGR7号可促进宁杞1号愈伤组织生根。GGR7号对宁杞1号新梢数和生根数的影响不明显。结论]GGR7号处理宁杞1号的最适浓度为150 mg/L。

Impact of Different Concentrations of Plant Growth Regulator GGR7 on the Softwood Cuttings of Ningqi No.1

Objective]To optimize the softwood cutting technology of Ningqi(Lycium barbarum L.) No.1,so as to provide supply support for local agricultural production.Method]With the clear water as the control,the impact of different concentrations(50,100,150 and 200 mg/L) of GGR7 on the survival rate,average root number,average root length,average root diameter,average shoot number,average shoot length,root architecture and rootage position was studied.Result]GGR7 could improve the rooting speed,survival rate and new shoot length while reduce the root diameter.And it also inhibited the rooting of cuttings,but with the increasing concentration of GGR7,the inhibition effects gradually disappeared.High concentrations(≥150 mg/L)of GGR7 could promote the rooting of cuttings callus.GGR7 had little impact on the shoot number and root number of Ningqi No.1.Conclusion]The optimal concentration of GGR7 for Ningqi 1 was 150 mg/L.