不同的生长调节剂对黑果枸杞硬枝扦插育苗的影响

摘要

[目的]研究不同的生长调节剂对黑果枸杞硬枝扦插育苗的影响.[方法]采用5种不同生长调节剂75 mg/L IBA、750 mg/L IAA、750 mg/L GGR7号、300 mg/L NAA和300 mg/L GA3对黑果构杞插条进行处理,调查硬枝扦插的出苗率、新生枝数量、新生根数量、新生根平均根长.[结果]对黑果枸杞出苗影响最大的是IBA,其苗率最高为85%,其次是IAA(80%)、GGR7号(78%)、NAA(75%)、GA3(73%),清水出苗率最低为65%.NAA和GGR7号对黑果枸杞新生枝教量有显著促进作用.对黑果枸杞扦插苗新生根数量有极显著促进作用的是GGR7号,其次为IBA.对黑果构杞扦插苗新生根平均根长有极显著促进作用的为GGR7号,其次为IAA.[结论]750mg/L生根粉GGR7号对黑果枸杞硬枝扦插育苗促进作用最大.%[ Objective ] To study the effect of different growth regulator on raising seedlings of Lycium ruthenicum Murr by hardwood cuttings.[Method] 5 kinds of different growth regulator including 75 mg/L IBA, 750 mg/L IAA, 750 mg/L GGR7, 300 mg/L NAA and 300 mg/L GA3 were adopted in the treatment of cuttings of Lycium ruthenicum Murr. Then, emergence rate, new-shoot number and average new-root length of hardwood cuttings were respectively investigated. [ Result] The emergence rate of Lycium ruthenicum Murr was influenced mostly by IBA at 85％, followed by IAA (80％), GGR7 (78％), NAA (75％) and GA3 (73％), and the least by clean water at 65％. NAA and GGR7 could enhance the new-shoot number obviously. The new-root number was enhanced very significantly by GGR7, followed by IBA. The average new-root length was enhanced very significantly by GGR7, followed by IAA. [ Conclusion] 750 mg/L GGR7 could mostly promote the raising seedlings of Lycium ruthenicum Murr by hardwood cuttings.