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Response of Poaceous Weeds in Wheat to Post-Emergence Herbicides | ||
Caspian Journal of Environmental Sciences | ||
مقاله 2، دوره 4، شماره 1، فروردین 2006، صفحه 9-16 اصل مقاله (379.5 K) | ||
نویسندگان | ||
Q. Mahmood1؛ Y. Hayat2؛ G. Jilani3؛ H. Shamsi* 4؛ K. B. Marwat5؛ S. Khalid6 | ||
1Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029, China; FG Post Graduate College sector H-8, Islamabad, Pakistan; | ||
2Department of Math/Stat/Computer Science, N.W.F.P. Agric. University, Peshawar, Pakistan; College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China. | ||
3College of Environment and Nutural Resource, Zhejiang University, Hangzhou 310029, China | ||
4Department of Agronomy, College of Agri. & Biotech., Zhejiang University, Hangzhou, | ||
5Department of Weed Science, N.W.F.P. Agricultural University, Peshawar, | ||
6Weed Science Program, National Agricultural Research Center Islamabad, | ||
چکیده | ||
Poaceous weeds are prolific and competitive in winter crops, but they are more insidious in wheat due to their similar morphology and growing requirements. Herbicides are effective and efficient tools of weed management, however, they are vulnerable to resistance, and herbicides with different modes of action might check the dominance of a particular weed flora. The current study was undertaken to see the response of three poaceous weeds viz., Phalaris minor, Avena fatua and Lolium temulentum, to herbicides Isoproturon, Topik (Clodinafop-p) and Puma Super (Fenoxaprop-p). Completely randomized design with two factor treatments (weeds, herbicides) and eight replications was employed. Data were recorded on chlorotic and necrotic effects of herbicides on weeds, and percent mortality at the time interval of 14, 21 and 28 days after the application of herbicides. Dry biomass weight of weeds was recorded at 30 days after the treatments. Results indicated that all the parameters were affected significantly over the period of time. Maximum counts of chlorotic (2.16) and necrotic (2.97) weeds were observed at the 21st day of treatment. The highest mortality (31.1 %) was recorded at 21st day after the application of herbicides. Phalaris minor was the most resistant weed to herbicides showing the lowest mortality (only 17.7 %) compared to other two weeds. Maximum dry weight of weeds was recorded in control while a minimum of 0.456 g dry weight was observed where Topik (Clodinafop-p) was applied. For the effective control of P. minor, A. fatua and L. temulentum weeds in wheat crop, Topik (15 WP) @ 0.37 kg a.i. ha-1 was proved to be the most suitable herbicide applied at 3-4 foliar stage. REFERENCES Angiras, N. N., Sharma, V. and Sherma, V. (1996) Influence of row orientation, row spacing and weed control methods & physiological performance of irrigated wheat (Triticum aestivum L.). Indian J. Agri. l Sci. 41, 41- 47. 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(1992) Weed management and fertiliser utilization. Fert. News 37, 59- 63. Shamsi, I. H., Khan, S., Farid, S. and Hussain, S. Z. (2001) Effect and economics of weed management practices on yield and yield components of wheat. Pak. J. Biol. Sci. 1, 20- 22. Steel, R. G. D. and Torrie, J. H. (1980) Principles and Procedures of Statistics. McGraw Hill Book Co., New York, USA. Stokosa, A., Janeczko, A., Skoczowski, A. and Kie, J. (2006) Isothermal calorimetry as a tool for estimating resistance of wild oat (Avena fatua L.) to aryloxyphenoxypropionate herbicides. Thermochimica Acta 441, 203–206. Tysoe, R.H. (1975) The control of Avena fatua in winter sown cereals with chlorotoluron. Weed Abst. 24, 34. Walia, U. S. and Gill, H.S . (1985) Interactions between herbicides and nitrogen in the control of Phalaris minor in wheat. Trop. Pest Management 31, 226-231. Welch, C. and Ross, M. A. (1997) Effect of glyphosate, glufosinate and 2, 4-D on Canada thistle. Proc. North Central Weed Sci. Soc. 52, 33-35. | ||
کلیدواژهها | ||
Avena fatua؛ Clodinafop؛ p؛ Fenoxaprop؛ Herbicides؛ Isoproturon؛ Lolium temulentum؛ Phalaris minor؛ Weeds | ||
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