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龙胆为珍贵野生秋季观花植物。为筛选其最优扦插方案,从基质类型、扦插月份和激素处理三个方面进行对比试验。结果表明:龙胆的最佳扦插基质为沙子+草炭土(3∶1);最佳扦插月份为6月;3种激素中对插穗生根影响显著的是IBA和NAA,浓度150mg/LIBA处理的综合效果最优;3种激素对根长的促进作用均为150 mg/L>100 mg/L>50mg/L;激素种类与浓度对根径生长未产生显著影响。
Gentian for precious wild autumn flowering plants. In order to screen the optimal cutting plan, comparative experiments were conducted from three aspects of substrate type, cutting month and hormone treatment. The results showed that the optimum cutting media for gentian were sand + peat soil (3:1), the best cutting month was June, and IBA and NAA were significantly affected by the three hormones on cuttings. The concentration of 150mg / LIBA The best effect of three hormones on root length was 150 mg / L> 100 mg / L> 50 mg / L. The hormone type and concentration had no significant effect on root diameter growth.