多效唑与矮壮素对福建茶的矮化效果

目的]分析多效唑与矮壮素对福建茶的矮化效果和经济效益,为寻找节约型的化学修剪新途径、合理使用植物生长延缓剂、降低城市园林绿化养护成本提供参考依据.方法]调查不同浓度多效唑与矮壮素及其混剂作用下福建茶的叶面积、叶厚度、叶绿素含量和新枝条生长量,研究其对福建茶矮化效果和经济效益的影响.结果]600倍矮壮素+600倍多效唑混剂或400倍多效唑对福建茶的矮化效果较好,全年喷施3次能使福建茶绿篱保持良好的景观效果,节约成本约29.82元/m2.结论]绿篱植物福建茶喷施一定剂量多效唑与矮壮素的混剂可以代替人工修剪,节约成本.

Dwarfing effects of paclobutrazol and CCC on hedge plant Carmona microphylla

【Objective】This research aimed to analyze the dwarfing effects of paclobutrazol and CCC on hedge plant Carmona microphylla and relrvemt economic benefits in order to obtain an economical way of chemical pruning the hedge plant， reasonably using plant growth retardation， and decreasing maintenance cost of unban landscaping. 【Method】The leaf area， leaf thickness， chlorophyll content， and new shoot increment of Carmona microphylla were analyzed after each subject was treated with different concentrations of paclobutrazol and CCC； their mixture was used to investigate the corresponding dwarfing effects and economic benefits. 【Result】The optimum combinations to create the best dwrafting effects were determined to be as follows: 600 times of CCC+600 times of paclobutrazol or 400 times of paclobutrazol. According to the large-scale experiment， spraying the above combinations three times a year to Carmona microphylla could assure excellent landscaping effect. Meanwhile， the production cost could be lowered by 29.82 yuan/m2 as opposed to not using the chemical concentration. 【Conclusion】Artificially pruning Carmona microphylla could be replaced by spraying certain concentrations of paclobutrazol and CCC， as well as their mixture， which could save the cost production.