拉萨南北山绿化工程优良乡土苗木——绢毛蔷薇(Rosa sericea)扦插生根技术研究
阿旺边觉 , 多贡卓玛 , 王荣芳 , 王俊伟 , 拉琼
高原科学研究 ›› 2026, Vol. 10 ›› Issue (3) : 37 -47.
拉萨南北山绿化工程优良乡土苗木——绢毛蔷薇(Rosa sericea)扦插生根技术研究
Research on the Cutting Rooting Technique of Rosa Sericea, A Superior Native Seedling for the Greening Project in North and South Mountain of Lhasa
为筛选适宜绢毛蔷薇扦插生根的复合生根剂处理方案,以绢毛蔷薇为材料,设置 4 种生根营养液处理(1.5 mL/L 30 s、1.5 mL/L 1 min、2 mL/L 30 s、2 mL/L 1 min)和2种 ABT-6 生根粉处理(0.15 g/L、0.2 g/L),以清水为对照,研究不同复合生根剂处理对扦插抽枝率、生根率及根系生长的影响。结果表明:不同复合生根剂处理对绢毛蔷薇扦插生根具有显著影响,其中 2 mL/L 30 s 处理抽枝率最高(97.5%),生根率最高(87.5%),最长根长达 23.7 cm;2 mL/L 1 min处理平均根长最大(17.6 cm);ABT-6 0.2 g/L 处理平均根数最多(13条)。总体上,生根营养液处理效果优于ABT-6生根粉处理。综上,2 mL/L 30 s为综合评价下的最佳处理组合,可为拉萨南北山绿化工程绢毛蔷薇规模化育苗提供技术参考。
In order to identify an optimal compound rooting agent treatment scheme for enhancing the cutting rooting of Rosa sericea, 4 rooting nutrient solution treatments (1.5 mL/L for 30 s, 1.5 mL/L for 1 min, 2 mL/L for 30 s, 2 mL/L for 1 min) and 2 ABT-6 rooting powder treatments (0.15 g/L, 0.2 g/L) were applied to Rosa sericea cuttings, with water treatment as the control. The effects of different compound rooting agent treatments on sprouting rate, rooting rate and root growth of Rosa sericea were investigated. The results showed that different compound rooting agent treatments significantly affected the rooting of Rosa sericea cuttings. Among them, under the compound rooting agent of 2 mL/L treating for 30 s achieved the highest sprouting rate (97.5%) and the highest rooting rate (87.5%), with a maximum root length of 23.7 cm. Under the compound rooting agent of 2 mL/L treating for 1 min produced the greatest average root length (17.6 cm). The ABT-6 (0.2 g/L) treatment resulted in the highest average number of roots (13). Overall, the rooting nutrient solution treatments were more effective than the ABT-6 treatments. Comprehensive analysis indicated that the compound rooting agent of 2 mL/L treating for 30 s is the optimal combination for cutting Rosa sericea rooting. The resultsproviding a technical reference for large-scale seedling propagation of Rosa sericea for the North and South Mountains Greening Project in Lhasa.
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