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Influence of herbicides on yield stability of winter wheat cultivars under different sowing rates | ||
International Journal of Plant Production | ||
مقاله 5، دوره 7، شماره 1، فروردین 2013، صفحه 55-65 اصل مقاله (141.92 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22069/ijpp.2012.921 | ||
نویسندگان | ||
R. Weber؛ R. Kieloch* | ||
Institute of Soil Science and Plant Cultivation, Department of Weed Science and Tillage Systems, Wrocław, Poland. | ||
چکیده | ||
Yield variability of selected winter wheat cultivars under different sowing rate and selected application, was investigated during 2006-2008, in the Lower Silesia region (South-West Poland). Experiments with two varieties, two levels of sowing rate and seven herbicides, including untreated object were set up on the same field, using split-plot method. For evaluation of yield stability Kang's yieldstability statistic (YS) was applied. Examined herbicides did not influence grain yield of both cultivars, at standard wheat density (450 seeds/m2). Under low density, Kobra Plus variety showed variable reaction to herbicides. Iodosulfuron methyl sodium + diflufenican + mezosulfuron methyl, mecoprop + MCPA + dicamba and iodosulfuron methyl sodium + amidosulfuron resulted in yield increment in comparison with untreated object, whilst dicamba + triasulfuron gave opposing effect. Yield stability at different herbicide objects during 3-years period was considerably variable and dependent on cultivar and sowing rate. Yield of both cultivars, obtained from plots treated with iodosulfuron methyl sodium + diflufenican + mezosulfuron methyl, iodosulfuron methyl sodium + amidosulfuron and mecoprop + MCPA + dicamba, under low density was comparable with standard sowing. | ||
کلیدواژهها | ||
Wheat؛ Cultivar؛ Yield stability؛ Sowing rate؛ Herbicides | ||
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