Glyphosate‐resistant Italian ryegrass (Lolium multiflorum) on rice paddy levees in Japan. Issue 1 (6th March 2013)
- Record Type:
- Journal Article
- Title:
- Glyphosate‐resistant Italian ryegrass (Lolium multiflorum) on rice paddy levees in Japan. Issue 1 (6th March 2013)
- Main Title:
- Glyphosate‐resistant Italian ryegrass (Lolium multiflorum) on rice paddy levees in Japan
- Authors:
- Niinomi, Yuki
Ikeda, Mutsuhiro
Yamashita, Masayuki
Ishida, Yoshiki
Asai, Motoaki
Shimono, Yoshiko
Tominaga, Tohru
Sawada, Hitoshi - Abstract:
- <abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The rapid range expansion of naturalized Italian ryegrass (<italic>Lolium multiflorum</italic> Lam.) in farmland is a serious problem in Fukuroi city in Shizuoka Prefecture, Japan. Glyphosate has been used to control Italian ryegrass in the levees of rice paddy fields and wheat fields for ∼20 years, but this weed in Fukuroi city is poorly controlled by glyphosate. In order to elucidate the level of resistance to glyphosate in Italian ryegrass populations, seed bioassays and a foliar application experiment, using seeds collected from 16 wild populations in and around Fukuroi city and from three susceptible cultivars, were conducted. For the susceptible cultivars and one population from a site where glyphosate had not been applied for &gt;10 years, the shoot length in the seed bioassays was greatly suppressed at a glyphosate concentration of 10 mg ai L<sup>−1</sup> and no seedling survived after the foliar application of glyphosate at a rate of 2.3 kg ai ha<sup>−1</sup>. Nine wild populations from levees in the southern part of Fukuroi city showed vigorous shoot growth at a glyphosate concentration of 10 mg ai L<sup>−1</sup> and had at least a 78% survival rate after the application of glyphosate at 2.3 kg ai ha<sup>−1</sup>. Four wild populations from levees in the northern part of Fukuroi city showed a slight suppression of the shoot growth as a result of the glyphosate treatment and<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The rapid range expansion of naturalized Italian ryegrass (<italic>Lolium multiflorum</italic> Lam.) in farmland is a serious problem in Fukuroi city in Shizuoka Prefecture, Japan. Glyphosate has been used to control Italian ryegrass in the levees of rice paddy fields and wheat fields for ∼20 years, but this weed in Fukuroi city is poorly controlled by glyphosate. In order to elucidate the level of resistance to glyphosate in Italian ryegrass populations, seed bioassays and a foliar application experiment, using seeds collected from 16 wild populations in and around Fukuroi city and from three susceptible cultivars, were conducted. For the susceptible cultivars and one population from a site where glyphosate had not been applied for &gt;10 years, the shoot length in the seed bioassays was greatly suppressed at a glyphosate concentration of 10 mg ai L<sup>−1</sup> and no seedling survived after the foliar application of glyphosate at a rate of 2.3 kg ai ha<sup>−1</sup>. Nine wild populations from levees in the southern part of Fukuroi city showed vigorous shoot growth at a glyphosate concentration of 10 mg ai L<sup>−1</sup> and had at least a 78% survival rate after the application of glyphosate at 2.3 kg ai ha<sup>−1</sup>. Four wild populations from levees in the northern part of Fukuroi city showed a slight suppression of the shoot growth as a result of the glyphosate treatment and their survival rates ranged from 20 to 64%. The results suggested that resistance to glyphosate has evolved in the wild populations of Italian ryegrass that are growing on the levees. This is the first report of a glyphosate‐resistant weed in Japan.</p> </abstract> … (more)
- Is Part Of:
- Weed biology and management. Volume 13:Issue 1(2013)
- Journal:
- Weed biology and management
- Issue:
- Volume 13:Issue 1(2013)
- Issue Display:
- Volume 13, Issue 1 (2013)
- Year:
- 2013
- Volume:
- 13
- Issue:
- 1
- Issue Sort Value:
- 2013-0013-0001-0000
- Page Start:
- 31
- Page End:
- 38
- Publication Date:
- 2013-03-06
- Subjects:
- Weeds -- Periodicals
Weeds -- Control -- Periodicals
632.5 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1445-6664 ↗
http://www.blackwell-synergy.com/member/institutions/issuelist.asp?journal=wbm ↗
http://www.blackwellpublishing.com/journal.asp?ref=1444-6162&site=1 ↗
http://onlinelibrary.wiley.com/ ↗
http://firstsearch.oclc.org ↗
http://firstsearch.oclc.org/journal=1444-6162;screen=info;ECOIP ↗ - DOI:
- 10.1111/wbm.12007 ↗
- Languages:
- English
- ISSNs:
- 1444-6162
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 9284.302000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 3793.xml