Effectiveness of herbicidal treatments against weeds in wheat and their action on yield and yield components | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 7, Issue 3, December 1999, Pages 103-121 PDF (6.53 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.1999.462122 | ||
| Authors | ||
| Farid S. Sabra* ; Fahmy A. Kassem; Mohamed A. S. Khalifa | ||
| Pesticide Chemistry Department, Faculty of Agriculture, Alexandria University, Chatby | ||
| Abstract | ||
| Three field experiments were carried-out, in the first experiment the following herbicides were used to control broad leaved weeds, Bromoxynil in six different formulations and combinations, Tribenuron-methyl, Metribuzin, and Metosulam. The second experiment was planned for the control of graminaceous weeds (the following herbicides were used Imazamethabenz-methyl, Diclofop-methyl + Fenoxaprop, Tralkoxydim, Diclofop-ethyl, Fenoxaprop-ethyl, Flumprop-isopropyl, and Clodinafop-propargyl. In the third experiment both broad leaved and graminaceous weeds were controlled with the following - (Isoproturon in two different formulations, and Isoproturon + Imazamethabenz-methyl. Each experiment was conducted in the two years 1995 and 1996 winter seasons at the Agriculture Research Experimental Station of the Faculty of Agriculture, Alexandria University at Abbas region. The soil type was clay loam soil. The efficacy of the three herbicidal groups against weeds in wheat plantation and their side effect on the yield and yield components of wheat was studied. The results revealed that, the predominant broad leaf weed in the first experiment in the two seasons was Beta vulgaris (47.5%). While the wild oat represents the infestation percentage of 76.15% in the second experiment in the two seasons. Regarding the infestation percentage in the 3rd experiment, the broad leaf weeds and graminaceous weeds were 78.8 and 31.6%, respectively. Metosulam was the most effective herbicide against broad leaf weeds which caused 100% reduction in weed population. While the most effective graminicide was Diclofop-ethyl + fenoxaprop followed by Clodinafop-propargyl. On the other hand, Isoproturon significantly reduced the all type of weeds by 95%. These herbicides increased wheat yield by more than 50% and enhanced plant characters and yield components such as plant height, No. of tiller/plant, spike length, 1000 grain weight and the harvest index. | ||
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