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| Occurrence of Glyphosate-Resistant Horseweed (Conyza canadensis) Population in China |
| Weed Research Laboratory, Nanjing Agricultural University |
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摘要 Horseweed (Conyza canadensis), an invasive alien weed, is one of the main weeds in orchards in China. Althoughglyphosate has been used for control of horseweed and many other weeds in orchards for more than 25 years in China, acase of glyphosate-resistant horseweed has not been identified in orchard in China so far despite glyphosate-resistanthorseweed cases have been reported in some other countries. Seeds of 25 horseweed populations were collected fromdifferent orchards with different glyphosate application history. Potted seedlings with 11-13-leaf growth stage weretreated with glyphosate at 0.035, 0.07, 0.14, 0.28, 0.56, 1.12, 2.24, 4.48, and 8.96 kg a.i. ha-1. The dosage dependenceresponse curve of each population was constructed with Log-logistic dose response regression equations. The ED50value of each population was calculated and compared with the susceptible population from China. Different populationshad different relative glyphosate-resistant levels which increased with the number of years of glyphosate application.Two populations with the highest resistance levels, 8.28 and 7.95 times, were found in Ningbo, Zhejiang Province, China,where glyphosate was used for weed control in orchards twice each year for 15 yr. The two resistant populationsaccumulated approximately two to four times less shikimic acid than the two susceptible populations 48 h after glyphosateapplication.
Abstract Horseweed (Conyza canadensis), an invasive alien weed, is one of the main weeds in orchards in China. Althoughglyphosate has been used for control of horseweed and many other weeds in orchards for more than 25 years in China, acase of glyphosate-resistant horseweed has not been identified in orchard in China so far despite glyphosate-resistanthorseweed cases have been reported in some other countries. Seeds of 25 horseweed populations were collected fromdifferent orchards with different glyphosate application history. Potted seedlings with 11-13-leaf growth stage weretreated with glyphosate at 0.035, 0.07, 0.14, 0.28, 0.56, 1.12, 2.24, 4.48, and 8.96 kg a.i. ha-1. The dosage dependenceresponse curve of each population was constructed with Log-logistic dose response regression equations. The ED50value of each population was calculated and compared with the susceptible population from China. Different populationshad different relative glyphosate-resistant levels which increased with the number of years of glyphosate application.Two populations with the highest resistance levels, 8.28 and 7.95 times, were found in Ningbo, Zhejiang Province, China,where glyphosate was used for weed control in orchards twice each year for 15 yr. The two resistant populationsaccumulated approximately two to four times less shikimic acid than the two susceptible populations 48 h after glyphosateapplication.
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Received: 27 July 2010
Accepted:
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Corresponding Authors:
Correspondence QIANG Sheng, Professor, Tel: +86-25-84395117, E-mail: qiangs@njau.edu.cn, wrl@njau.edu.cn
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| About author: SONG Xiao-ling, Ph D, E-mail: sxl@njau.edu.cn; |
Cite this article:
SONG Xiao-ling, WU Jia-jun, ZHANG Hong-jun and QIANG Sheng.
2011.
Occurrence of Glyphosate-Resistant Horseweed (Conyza canadensis) Population in China. Journal of Integrative Agriculture, 10(7): 1049-1055.
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| [1] Atkinson D. 1985. Toxicological properties of glyphosate - asummary. In: Grossbord E, Atkinson D, eds., The HerbicideGlyphosate. Butterworth, Toronto. pp. 127-134, 210-216.[2] Baerson S R, Rodriguez D J, Biest D J, Tran M, You J S, KreugerR W, Dill G M, Pratley J E, Gruys K J. 2002. Investigatingthe mechanism of glyphosate resistance in rigid ryegrass(Lolium rigidum). Weed Science, 50, 721-730.[3] Baylis A. 2000. Why glyphosate is a global herbicide: strengths,weaknesses and prospects. Pest Management Science, 56,299-308.[4] Bradshaw L D, Padgette S R, Kimball S L, Wells B H. 1997.Perspectives on glyphosate resistance. Weed Technology, 11,189-198.[5] Caseley J, Copping L. 2000. Twenty-five years of increasingglyphosate use: the opportunities ahead. Pest ManagementScience, 56, 297.Cromartie T H, Polge N D. 2000. An improved assay for shikimicacid and its use as a monitor for the activity of sulfosate.Proceeding of Weed Science Society America, 40, 291.Culpepper A S, Grey T L, Vencill W K, Kichler J M, Webster TM, Brown S M, York A C, Davis J W, Hanna W W. 2006.Glyphosate-resistant Palmer amaranth (Amaranthus palmeri)confirmed in Georgia. Weed Science, 54, 620-626.[6] Feng P C C, Tran M, Chiu T, Sammons R D, Heck G R, CaJacobC A. 2004. Investigations into glyphosate-resistant horseweed(Conyza canadensis): retention, uptake, translocation, andmetabolism. Weed Science, 52, 498-505.[7] van Gessel M J. 2001. Glyphosate-resistant horseweed fromDelaware. Weed Science, 49, 703-705.[8] Heap I M. 2005. International survey of herbicide-resistantweeds. [2005-10-31].[9] http://www.weedscience.orgKoger C H, Reddy K N. 2005. Role of absorption andtranslocation in the mechanism of glyphosate resistance inhorseweed (Conyza canadensis). Weed Science, 53, 84-89.[10] Lee L J, Ngim J. 2000. A first report of glyphosate-resistantgoosegrass (Eleusine indica (L.) Gaertn) in Malaysia. PestManagement Science, 56, 336-339.[11] Lorraine-Colwill D F, Powles S B, Hawkes T R, Hollinshead PH, Warner S J, Preston C. 2002. Investigations into themechanism of glyphosate resistance in Lolium rigidum.Pesticide Biochemistry and Physiology, 74, 62-72.[12] Malik J, Barry G, Kishore G. 1989. The herbicide glyphosate.Biofactors, 2, 17-25.[13] Mueller T C, Massey J H, Hayes R M, Main C L, Stewart Jr CN. 2003. Shikimate accumulates in both glyphosate-sensitiveand glyphosate-resistant horseweed (Conyza canadensis L.Cronq.). Journal of Agricultural and Food Chemistry, 51,680-684.[14] Ng C H, Wickneswari R, Salmijah S, Teng Y T, Ismail B S. 2003.Gene polymorphisms in glyphosate-resistant and susceptiblebiotypes of Eleusine indica from Malaysia. Weed Research, 43, 108-115.[15] Perez A, Kogan M. 2003. Glyphosate-resistant Loliummultiflorum in Chilean orchards. Weed Research, 43, 12-19.[16] Perez-Jones A, Park K W, Colquhoun J, Mallory-Smith C, ShanerD. 2005. Identification of glyphosate-resistant Italian ryegrass(Lolium multiflorum) in Oregon. Weed Science, 53, 775-779.[17] Powles S, Preston C, Bryan I, Jutsum A. 1996. Herbicideresistance: Impact and management. Advances in Agronomy,58, 57-93.[18] Qiang S, Song X L, Wu J J. 2006. Resistant Pest Manage. 16(1),[2006-11-22].[19] http://www.weedscience.org/Case/Case.asp?ResistID=5277Sellers B A, Pollard J M, Smeda R J. 2005. Two common ragweed(Ambrosia artemisiifolia) biotypes differ in biology andresponse to glyphosate. Proceeding of Weed Science Society,45, 156.Simarmata M, Kaufmann J E, Penner D. 2003. Potential basis ofglyphosate resistance in California rigid ryegrass (Loliumrigidum). Weed Science, 51, 678-682.[20] Singh B K, Shaner D L. 1998. Rapid determination of glyphosateinjury to plants and identification of glyphosate-resistantplants. Weed Technology, 12, 527-530.[21] Steinrucken H, Amrhein N. 1980. The herbicide glyphosate is apotent inhibitor of 5-enolpyruvylshikimate-3-phosphatesynthase. Biochemical and Biophysical ResearchCommunications, 94, 1207-1212.[22] Tran M, Baerson S, Brinker R, Casagrande L, Faletti M, Feng Y,Nemeth M, Reynolds T, Rodriguez D, Shaffer D, et al. 1999.Characterization of glyphosate resistant Eleusine indicabiotypes from Malaysia. In: Proceedings of the 17th Asian-Pacific Weed Science Society Conference. pp. 527-536.[23] Urbano J M, Borrego A, Torres V, Jimenez C, Leon J M, BarnesJ. 2007. Glyphosate-resistant hairy fleabane (Conyzabonariensis) in Spain. Weed Technology, 21, 396-401.[24] Woodburn A. 2000. Glyphosate production, pricing and useworldwide. Pest Management Science, 56, 309-312. |
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