›› 2006, Vol. 14 ›› Issue (1): 57-61,76.DOI: 10.11733/j.issn.1007-0435.2006.01.013

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Comparison of Effects of Four Plant Growth Retardants on Growth Characteristics of Poa pratensis

LIU Xiao-jing, SUN Ji-xiong   

  1. College of Grassland Science, Gansu Agriculture University, Lanzhou, Gansu Province 730070, China
  • Received:2005-01-21 Revised:2005-05-11 Online:2006-02-15 Published:2006-02-15

4种植物生长延缓剂对草地早熟禾生长性能的影响

刘晓静, 孙吉雄   

  1. 甘肃农业大学草业学院, 兰州, 730070
  • 作者简介:刘晓静(1968- ),女,甘肃酒泉市人,讲师,在读博士,E-mail:liuxj@gsau.edu.cn
  • 基金资助:
    甘肃省教育厅科技项目“西北地区草坪延长绿期的措施及机理研究”(032-05)

Abstract: The growth characteristics of Poa pratensis cv.Bluechip after being treated with the 4 plant growth retardants,namely:Paclobutrazol(PP333),Uniconazole(S-3307),Chemical Controllers No.11 and No.12,were analyzed based on field experiments,and their visual qualities after the different treatments were also defined and compared.Results show that all the treatments could not only control the growth of Bluechip,but also deepen the colour of the turfgrass leaves.Further experiments and observations proved that the optimal rate of application of the 4 retardants is:50.0 or 100.0 mg/m2 of PP333;20.0 or 40.0 mg/m2 of S-3307,or(0.25) ml/m2 of Chemical Controller No.12.

Key words: Plant growth retardant, Poa pratensis, Growth characteristics

摘要: 以多效唑、烯效唑、化控11号和12号4种植物生长延缓剂对“抢手股”草地早熟禾(Poa pratensis)的生长特性进行田间试验观测,对草坪外观品质进行综合评价。结果表明:4种延缓剂的各浓度处理对草地早熟禾的生长都有不同程度的抑制作用,并可加深其叶色;对4种延缓剂作用下的外观品质进行的评价表明,以多效唑50.0和100.0 mg/m2、烯效唑20.0和40.0 mg/m2和化控12号0.25 ml/m2作用下的草坪外观品质最好。

关键词: 植物生长延缓剂, 草地早熟禾, 生长特性

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