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| Evaluation of Curvularia lunata Strain B6 as a Potential Mycoherbicide to Control Barnydrgrass (Echinochloa crus-galli) |
| LI Jing, WEI Tao, SUN Ai-rui , NI Han-wen |
| College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.China |
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摘要 The virulent strain B6 of Curvularia lunata was screened out from 65 fungus strains isolated from the diseased leaves of barnyardgrass (Echinochloa crus-galli). Greenhouse and field studies were conducted to evaluate the feasibility of the strain being exploited as a mycoherbicide for barnyardgrass control in paddy fields. The results of pathogenicity experiments showed that this strain was highly pathogenic to barnyardgrass at the 1- to 2.5-leaf stages. The fresh weight reduction increased with the increase of inoculated conidial concentrations and the prolongation of dew duration. Strain B6 provided excellent barnyardgrass control when it was applied at the concentration of 1×104-1×106 conidia mL-1 in paddy fields with water layer. This strain was very safe to rice and the most plant species except wheat, barley and corn. Findings of this study indicated that this strain could be a potential mycoherbicide for barnyardgrass control in paddy fields in the future.
Abstract The virulent strain B6 of Curvularia lunata was screened out from 65 fungus strains isolated from the diseased leaves of barnyardgrass (Echinochloa crus-galli). Greenhouse and field studies were conducted to evaluate the feasibility of the strain being exploited as a mycoherbicide for barnyardgrass control in paddy fields. The results of pathogenicity experiments showed that this strain was highly pathogenic to barnyardgrass at the 1- to 2.5-leaf stages. The fresh weight reduction increased with the increase of inoculated conidial concentrations and the prolongation of dew duration. Strain B6 provided excellent barnyardgrass control when it was applied at the concentration of 1×104-1×106 conidia mL-1 in paddy fields with water layer. This strain was very safe to rice and the most plant species except wheat, barley and corn. Findings of this study indicated that this strain could be a potential mycoherbicide for barnyardgrass control in paddy fields in the future.
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Received: 07 September 2012
Accepted: 04 July 2013
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| Fund: This research was supported by the the High Technology R&D Program of China (2006AA10A214). |
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Corresponding Authors:
Correspondence NI Han-wen, Tel/Fax: +86-10-62731302, E-mail: hanwenni@cau.edu.cn
E-mail: hanwenni@cau.edu.cn
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Cite this article:
LI Jing, WEI Tao, SUN Ai-rui , NI Han-wen.
2013.
Evaluation of Curvularia lunata Strain B6 as a Potential Mycoherbicide to Control Barnydrgrass (Echinochloa crus-galli). Journal of Integrative Agriculture, 12(7): 1201-1207.
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| [1]Abeysekra A S K. 2003. Management of Echinochloaspecies in rice in Sri Lanka. In: Kim K, Labrada R, eds.,Echinchloa Control in Rice. Jungkack-Dang Press,Daegu, Korea. pp. 29-36[2]Bligtami K S, Sinha K K, Ansari A A. 1995. Wide spreadoccurrence of toxigenic Alternaria in cereals andoilseeds. Indian Phytopathology, 2, 150-153[3]Caunter I G. 1997. Identification of potential biohercidefungi for control of rice weeds in Malaysia. In: The16th Asian Pacific Weeds Science Society Conference.Malaysian Plant Protection Society, Kuala Lumpur,Malaysia. pp. 356-360[4]Charudattan R. 2005. Ecological, practical, and politicalinputs into selection of weed targets: what makes agood biological control target? Biological Control, 35,183-196[5]Charudattan R, Dinoor A. 2000. Biological control of weedsusing plant pathogens: accomplishments andlimitations. Crop Protection, 19, 691-695[6]Chen Y, Ni H W. 1999. Pathogenicity of indigenous fungito Echinochloa crusgalli and rice. Chinese Journal ofBiological Control, 15, 73-76[7]Chung Y R, Kim B S, Kim H T. 1990. Identification ofExserohilum species, a fungal pathogen causing leafblight of barnyardgrass (Echinochloa crus-galli).Korean Journal of Plant Pathology, 6, 429-433[8]Fu Z W, Zhang C X, Qian Y X. 2001. Determination of butachlor resistant Echinochloa crus-galli occurringin paddy rice and study of the resistant mechanism. In:Proccedings of the 18th Asian-Pacific Weed ScienceSociety Conference. Beijing, China. pp. 488-493[9]Ghosheh H Z. 2005. Constraints in implementing biologicalweed control: A review. Weed Biology andManagement, 5, 83-92[10]Gohbara M, Yamaguchi K, Petersen J B. 1992. Biologicalagents for the control of paddy weeds in Japan.Integrated Management of Paddy and Aquatic Weedin Asia, 45, 184-194[11]Goto M. 1992. The relationship between Emmalocera sp.and barnyardgrass and its potential as a biologicalcontrol agent. Integrated Management of Paddy andAquatic Weed in Asia, 45, 113-121[12]Huang B Q, Lin S X. 1993. Studies on butachlor resistantEchinochloa in China. Journal of South ChinaAgricultural University, 14, 103-108[13]Huang S W, Yu L Q, Duan G F, Luo K. 2005. Study onbarnyardgrass (Echinochloa crus-galli) control byHelminthosporium gramineum and Exserohilummonoceras. Acta Phytopathologica Sinica, 35, 66-72[14]Hurle K. 1997. Concepes in weed control - how dosebiocontrol fit in? Integrated Pest Management Reviews,2, 87-89[15]Jamil F F, Nicholson R L. 1987. Susceptibility of corn toisolates of Colletotrichum graminicola pathogenic toother grasses. Plant Disease, 71, 809-810[16]de Luna L Z, Watson A K, Paulitz T C. 2000. Reaction ofrice (Oryza sativa) cultivars to penetration and infectionby Curvularia tuberculata and C. oryzae. PlantDisease, 5, 470-476[17]Maneechote C. 2003. Echinochloa control in rice: casestudy in Thailand. In: Kim K, Labrada R, eds.,Echinchloa Control in Rice. Jungkack-Dang Press,Daegu, Korea. pp. 17-20[18]Ni H W, Li J, Wei T, Cao Y S, Wang Q. 2012. Strain B6 ofCurvularia lunata and its application. Chinese Patent,ZL 2010 1 0149432.0Reis E M. 1985. Manipulation of Helminthosporium spp.on sensscent tissues of graminaceous weeds andsoybean under natural conditions. FitopathologiaBrasileita, 3, 643-648[19]Tsukamoto H, Gohbara M, Tsuda M. 1997. Evaluation offungal pathogens as biological control agents for thepaddy weed, Echinochloa species by drop inoculation.Annuals of the Phytopathological Society of Japan,63, 366-372[20]Watson A K. 1991. The classical approach with plantpathogens. In: TeBeest D O, ed., Microbial Control ofWeed. Chapman and Hall, New York, USA. pp. 3-23[21]Whipps J M, Lumsden R D. 2001. Commercial use of fungias plant disease biological control agents: status andprospects. In: Butt T M, Jackson C, Magan N, eds.,Fungi as Biocontrol Agents. CAB International, NewYork, USA. pp. 9-22[22]Yang M, Li J Q, Ni H W, Wang Q. 2007. Pathogenicitysystem of Exserohilum monoceras to barnyardgrassin greenhouse. Acta Phytopathologica Sinica, 37, 221-224Zhang W M, Moody K, Watson A K 1996. Responses ofEchinochloa species and rice (Oryza sativa) toindigenous pathogenic fungi. Plant Disease, 8, 1053-1058[23]Zhang W M, Watson A K. 1997. Efficacy of Exserohilummonoceras for the control of Echinochloa species inrice (Oryza sativa). Weed Science, 45, 144-150. |
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