三种植物生长调节剂对蚂蚱腿子嫩枝扦插生根的影响

应用NAA、IBA、ABT 3种植物生长调节剂,设置50、100、200、300 mg/L 4个质量浓度,以蚂蚱腿子1年生半木质化萌蘖枝为材料,探究不同植物生长调节剂及其质量浓度对蚂蚱腿子嫩枝扦插生根的影响.结果表明:不同生长调节剂种类及质量浓度对蚂蚱腿子嫩枝扦插生根的影响不同,总体上NAA和IBA处理对蚂蚱腿子嫩枝扦插生根均有促进作用,ABT处理在300 mg/L下对插穗生根抑制作用明显,100、200 mg/L质量浓度NAA处理下插穗的生根率、生根数及根长均明显高于其他处理,对蚂蚱腿子嫩枝扦插生根具有较强的促进作用.

Effects of Three Plant Growth Regulators on Softwood Cutting and Rooting of Myripnois dioica

One-year-old cuttings ofM yripnois dioica were selected as the research object, three plan tgrowth regulators (NAA, IBA, ABT) were treated with four concentrations of 50 mg/L, 100 mg/L, 200 mg/ L and 300 mg/L to explore the effects on softwood cutting and rooting of Myripnois dioica . The results showed that the effects of different growth regulators with different concentrations on softwood cutting and rooting of Myripnois dioica were different. In general, NAA and IBA improved softwood cutting and rooting of Myripnois dioica to a certain extent. ABT with 300 mg/L significantly inhibited the rooting, the rooting rate and rooting number of cuttings treated by NAA with 100 mg/L or 200 mg/L were higher, which had a strong promoting effect on softwood cutting and rooting of Myripnois dioica .