RESPONSE OF TEN ZOYSIAGRASS (ZOYSIA SPP.) CULTIVARS TO METAMIFOP
Metamifop selectively controls problematic weeds in zoysiagrass,but the genetic diversity among cultivars may lead to differential tolerance levels.The objective of these experiments was to evaluate growth and injury of ten zoysiagrass cultivars following metamifop applications at 8 rates,ranging 0.05 to 6.4 kg a.i.ha-1.Zoysiagrass cultivars evaluated included: ‘Carrizo’,‘Diamond’,‘El Toro’,‘Emerald’,‘Himeno’,‘Meyer’,‘Pristine’,‘Zenith’,‘Zeon’,and ‘Zorro’.From levels of zoysiagrass injury and rate of recovery,cultivars with high tolerance to metamifop included Carrizo,Diamond,Emerald,Meyer,Pristine,and Zeon.El Toro,Himeno,Zeon,and Zenith had more injury to metamifop than aforementioned cultivars.Despite injury and clipping reductions,all zoysiagrass cultivars recovered with acceptable levels of injury (<20%) from rates required for weed control (≤0.8 kg ha-1).Results suggest zoysiagrass tolerance to metamifop is highly variable across cultivars but was generally acceptable at rates required for controlling weeds.
cultivar herbicide turfgrass zoysiagrass
Diego Gómez de Barreda Patrick E. McCullough Brian M. Schwartz
Universitat Politècnica deValència,46022,Valenica,Spain Dept. of Crop & Soil Sciences,University of Georgia,Griffin,GA 30223 USA Dept. of Crop & SoilSciences,University of Georgia,Tifton,GA 31793 USA
国际会议
The 12th International Turfgrass Research Conference(第十二届国际草坪学术大会)
北京
英文
679-683
2013-07-14（万方平台首次上网日期，不代表论文的发表时间）