[目的]研究生长调节剂Primo MAXX对狗牙根草坪草生长的影响,为华南地区Primo MAXX在狗牙根草坪上的应用提供依据.[方法]采用单因素随机区组试验设计,研究不同浓度的Primo MAXX对狗牙根草坪草自然生长高度、叶色及地上部鲜重的影响.[结果]不同浓度的Primo MAXX对狗牙根的生长高度有较好的抑制作用,且各浓度之间差异不显著;适量施用Primo MAXX可以丰富草坪色彩;施药后35 d狗牙根茎变粗.[结论]在华南地区狗牙根草坪上使用有效剂量为150～300 g/hm2的Primo MAXX较为适宜.%[ Objective ] The aim was to investigate effects of primo MAXX growth regulator on growth of Bermuda grass, to provide basis for the application of Primo MAXX in Bermuda meadow. [ Method] The height, leaf color and the aerial part' s fresh weight of Bermuda grass treated with different concentrations were researched using single factor random block test. [ Result ] Primo MAXX application effectively reduced the height in all treatment without significant difference; appropriate application of Primo MAXX can enrich the color; and 35 days after application, Bermuda grass roots thickened. [ Conclusion] The application of 150 -300 g/hm2 effective dose of Primo MAXX to Bermuda grass in southern China is more appropriate.
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