IMPROVING PERENNIAL RYEGRASS OVERSEEDING IN ‘PATRIOT’ BERMUDAGRASS USING CULTURAL AND CHEMICAL TREATMENTS

摘要：

　　Bermudagrass (Cynodon sp.) is commonly used in the southern region and transition zone of the United States on golf courses and athletic fields due to its excellent weartolerance and recuperative ability.Turf managers may overseed dormant bermudagrass with perennial ryegrass (Lolium perenne L.) to provide a green playing surface during the fall and winter months.Establishing perennial ryegrass in dense bermudagrass can be challenging due to thick thatch layers produced by the vigorous growth of bermudagrass.Our objective was to evaluate different chemical and cultural treatments to improve establishment of perennial ryegrass in dense bermudagrass,coupled with simulated athletic field traffic.Topdressing with sand significantly improved perennial ryegrass cover in one of two years without decreasing turf color.Vertical mowing once or twice,or vertical mowing twice and core aeration once did not improve perennial ryegrass cover compared to only topdressing.Application of trinexapac-ethyl improved perennial ryegrass cover compared to untreated turf regardless of cultural treatment in one year and resulted in equivalent perennial ryegrass cover in the other year.Application of triclopyr or triclopyr plus mesotrione did not improve perennial ryegrass establishment compared to trinexapac-ethyl,and decreased turf color in one of two years.

关键词： dormancy aeration transition zone vertical mowing

作者: M.C. Cox T.L. Mittlesteadt S.D. Askew

作者单位: Department ofPlant Pathology,Physiology,and Weed Science,VirginiaPolytechnic Institute and State University,Blacksburg,VA24061 USA

会议类型: 国际会议

会议名称: The 12th International Turfgrass Research Conference(第十二届国际草坪学术大会)

会议地点: 北京

会议语种:英文

页码: 231-236

在线出版日期: 2013-07-14（万方平台首次上网日期，不代表论文的发表时间）