Impacts of Primo MAXX Growth Regulator on the Growth of Bermuda Grass

[Objective] The aim was to investigate the effects of Primo MAXX growth regulator on growth of Bermuda grass,explore appropriate application concentration of Primo MAXX on Bermuda grass,and provide basis for the application of Primo MAXX in Bermuda meadow.[Method]The height,leaf colour 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 were become thicker.[Conclusion]The application of Primo MAXX with effective dose of 150-300 g/hm2 on Bermuda grass in southern China is more appropriate.

生长调节剂Primo MAXX对狗牙根草坪草生长的影响

[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35d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150～300g/hm2的Primo MAXX较为适宜。

矮化剂浦绿对天堂草328的抑制效果

[目的]抑制天堂草328垂直生长、减少草坪修剪频率、降低草坪养护费用以及提高草坪质量。[方法]采用随机区组试验设计,设置不同浓度的矮化剂浦绿处理,研究其对天堂草328生物学特性及生理指标的影响。[结果]不同浓度浦绿均可显著抑制天堂草328的株高并缩短其叶片及茎节长度,适宜浓度的浦绿不仅能显著提高其绿色指数、草坪盖度、分蘖数、地上与地下生物量,而且还能增强草坪草抗性,但高浓度浦绿则相反,会影响草坪质量。[结论]综合评价以0.10 m L/m2的浦绿处理效果最佳,其既可使天堂草328显著矮化,又不影响草坪质量。