The Application of Plant Growth Regulator,Trinexapac-ethyland Prohexadione-Ca,to Turfgrass

doi:10.11733/j.issn.1007-0435.2005.04.010

›› 2005, Vol. 13 ›› Issue (4): 304-307.DOI: 10.11733/j.issn.1007-0435.2005.04.010

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The Application of Plant Growth Regulator,Trinexapac-ethyland Prohexadione-Ca,to Turfgrass

YANG Dai-bin¹, YUAN Hui-zhu¹, QIN Zhao-hai², HE Yuan³, WANG Shu-zhi⁴

1. Institute of Plant Protection, CAAS, Beijing, 100094, China;
2. Department of Applied Chemistry, China Agricultural University, Beijing, 100094, China;
3. Beijing SinoSeed Turf Forage Co.Ltd, Beijing 100029, China;
4.Xibeiwang Agriculture Service Center, Beijing, 100094, China

Received:2004-12-07 Revised:2005-06-25 Online:2005-11-15 Published:2005-11-15

Trinexapac-ethyl、Prohexad ione-Ca在草坪化学控制中的应用研究

杨代斌¹, 袁会珠¹, 覃兆海², 何源³, 王淑芝⁴

1. 中国农业科学院植物保护研究所, 北京, 100094;
2. 中国农业大学理学院, 北京, 100094;
3. 北京中种草业有限公司, 北京, 100029;
4. 北京市海淀区西北旺农业综合服务中心, 北京, 100094

作者简介:杨代斌(1972- ),湖北松滋人,在职博士研究生,主要从事农药化学研究
基金资助:
“948”引进项目(编号2001-225);海淀区科技项目(NT200405);农业部农药化学与应用技术重点开放实验室资助课题(编号200310)

Abstract

Abstract: A two-year study was undertaken to evaluate the feasibility of growth control of Trinexapac-ethyl and Prohexadione-Ca to turfgrass,more particularly,to the growth control of Festuca arundinacea Schreb.The result shows that Trinexapac-ethyl reduced the shoot height of Festuca arundinacea Schreb distinctly when the applying rate was above 0.095 kg/hm²;while Prohexadione-Ca suppressed the shoot height by 95.2% at a 0.36 kg/hm².rate.At the same time,both Trinexapac-ethyl and Prohexadione-Ca reduced the clipping fresh weight of grasses,but did not affect the clipping dry weight.When Trinexapac-ethyl was applied to clipped turf,the taller the stubble was left, the lower the re-growing plant would be.The equitable stubble height is(4-6cm).Trinexapac-ethyl and Prohexadione-Ca could improve turf quality and reduce the shoot height and subsequently the frequency of clipping.

Key words: Trinexapac-ethyl, Prohexadione-Ca, Chemical control, Turfgrass, Festuca arundinacea

摘要： 为探明Trinexapac-ethyl和Prohexadione-Ca用于草坪化学控制的可行性,研究了其对高羊茅(Festuca arundinacea)生长发育的影响。结果显示:使用剂量高于0.095 kg/hm²时,Trinexapac-ethyl对高羊茅具有明显的矮化作用,在0.36kg/hm²剂量下Prohexadione-Ca的抑制率可达95.2%;Trinexapac-ethyl和Prohexadione-Ca都能使植株新增鲜重显著降低,但对新增干重影响很小,Trinexapac-ethyl对植株新增干重无影响;在施用Trinexapac-ethyl的情况下,随着留茬高度的增加新增株高减少,合理留茬高度为4-6cm;Trinexapac-ethyl和Prohexadione-Ca可以有效降低株高,从而减少草坪修剪次数。

关键词: Trinexapac-ethyl, Prohexadione-Ca, 化学控制, 生长抑制剂, 草坪草, 高羊茅

CLC Number:

S688
S13.8

YANG Dai-bin, YUAN Hui-zhu, QIN Zhao-hai, HE Yuan, WANG Shu-zhi. The Application of Plant Growth Regulator,Trinexapac-ethyland Prohexadione-Ca,to Turfgrass[J]. , 2005, 13(4): 304-307.

杨代斌, 袁会珠, 覃兆海, 何源, 王淑芝. Trinexapac-ethyl、Prohexad ione-Ca在草坪化学控制中的应用研究[J]. , 2005, 13(4): 304-307.

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The Application of Plant Growth Regulator,Trinexapac-ethyland Prohexadione-Ca,to Turfgrass

Trinexapac-ethyl、Prohexad ione-Ca在草坪化学控制中的应用研究

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