IDENTIFICATION OF SULFOMETURON-RESISTANT ITALIAN RYEGRASS (LOLIUM-MULTIFLORUM) SELECTIONS

Citation
Jm. Taylor et Ge. Coats, IDENTIFICATION OF SULFOMETURON-RESISTANT ITALIAN RYEGRASS (LOLIUM-MULTIFLORUM) SELECTIONS, Weed technology, 10(4), 1996, pp. 943-946
Citations number
11
Categorie Soggetti
Agriculture,"Plant Sciences
Journal title
ISSN journal
0890037X
Volume
10
Issue
4
Year of publication
1996
Pages
943 - 946
Database
ISI
SICI code
0890-037X(1996)10:4<943:IOSIR(>2.0.ZU;2-Q
Abstract
Two sulfometuron-resistant biotypes of Italian ryegrass were identifie d from rights-of-way of U.S. Highway 49E in Holmes County, MS, and Sta te Highway 14 in Humphreys County, MS, Sulfometuron at 5.2 g ai/ha app lied PRE or POST reduced shoot fresh weight of these selections 20% or less at 4 wk after treatment. A susceptible 'Gulf' Italian ryegrass w as reduced 52% or more in shoot fresh weight by 0.5 g/ha sulfometuron applied PRE or POST, The biotype from Highway 49E was reduced 47% or l ess in shoot fresh weight by 520 g/ha sulfometuron applied PRE or POST .