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EVALUATION OF DICLOPHOF-METHYL AND TRIBENURON-METHYL FOR WEED CONTROL IN SOME WHEAT CULTIVARS GRWON IN CENTRAL REGION OF IRAQ | ||
| journal of kerbala university | ||
| Article 1, Volume 7, Issue 3, 2011, Pages 477-483 PDF (0 K) | ||
| Abstract | ||
| A field experiment was conducted during winter season of 2008-2009 at the farm of the Department of Field Crop Sciences / Agriculture College / Univ. of Baghdad - Abu-Graib, to evaluate the activity of clodinafop-propargyl and tribenuron-methyl on weeds control associated with some wheat cultivars. Results showed that tribenuron-methyl herbicide superior than clodinaphop-propargyl herbicide. Tribenuron-methyl reduced weed density, weed dry weights, and caused great dry weight suppression percentage and weed control percentage; 20.7 plant.m-2, 31.50 gm.m-2, 70.73% and 92.42% respectively as compared with clodinaphop-propargyl and weedy check treatments. The wheat cultivar Tahaddi showed greater effect than other cultivars, and caused least weed density 120.3 plant.m-2, least weed dry weight 44.25 gm.m-2, high percentage ofweed dry weights suppression 59.35% and greater percentage of weed control 64.19%. While the cultivars Fatah and Iraq showed greater weed dry weight 63.08 and 57.25 gm.m-2 respectively and least percentage of weed suppression 26.27% and 49.73% respectively. However the cultivar IPA99 recorded highest weed density 139 plant.m-2 and lower percentage of weed control 51.73%. Interaction between the herbicides and cultivars, it seems that the cultivar Tahaddi caused greater weed density, reduction in weed dry weights, and gave greater percentage of weed suppression and weed control, while the cultivar Fatah showed more sensitivity to both herbicides and recorded highest weed density, dry weight and least percentage of weed suppression and weed control. This indicates that cultivars Tahaddi was the most tolerant to weed competition and showed greater response to herbicides activity, Therefor recommendation could be carry out by using mixtures of both herbicides with other cultivars to study the integration between competitive the cultivars to accompanied weeds and its impact on their yield. | ||
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