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标题：Minireview: importance of herbicide-tolerant sunflower hybrids in suppressing common ragweed (Ambrosia artemisiifolia) pollen production
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作者：Peter Reisinger ; Gabor Kukorelli ; Andras Bittsanszky 等
期刊名称：EQA - International Journal of Environmental Quality
印刷版ISSN：2281-4485
出版年度：2013
卷号：12
期号：12
页码：31-37
DOI：10.6092/issn.2281-4485/4247
语种：English
出版社：Alma Mater Studiorum - University of Bologna
摘要：Common ragweed (Ambrosia artemisiifolia) is the number one weed in Hungary: it covers ca. 5% of the arable land, causing huge losses in row crops, especially in sunflowers. In addition, because of the high allergenicity of its pollen, common ragweed is a heavy burden on the health care system. This minireview discusses the importance of use of herbicide-tolerant sunflower hybrids in eliminating common ragweed from sunflower fields, with special emphasis on the efficacy of common ragweed control of two acetolactate-synthase inhibitor postemergence herbicides (imazamox and tribenuron methyl) in several sunflower hybrids that carry the resistance gene against such herbicides. Common ragweed control by these herbicides was excellent: they suppressed the growth of the weed plant until the canopy closure of the crop (8-leaf stage). Common ragweed plants germinating after this date were unable to compete with the crop: although they survived, they remained small (ca. 70% reduction in height), produced ca. 90% less male inflorescences (source of the allergenic pollen), and caused no significant reduction in the crop yield. In order to stop the seed production by the few late-germinating weed plants we recommend a mechanical common measure (row-cultivator) in late August.
其他摘要：Common ragweed (Ambrosia artemisiifolia) is the number one weed in Hungary: it covers ca. 5% of the arable land, causing huge losses in row crops, especially in sunflowers. In addition, because of the high allergenicity of its pollen, common ragweed is a heavy burden on the health care system. This minireview discusses the importance of use of herbicide-tolerant sunflower hybrids in eliminating common ragweed from sunflower fields, with special emphasis on the efficacy of common ragweed control of two acetolactate-synthase inhibitor postemergence herbicides (imazamox and tribenuron methyl) in several sunflower hybrids that carry the resistance gene against such herbicides. Common ragweed control by these herbicides was excellent: they suppressed the growth of the weed plant until the canopy closure of the crop (8-leaf stage). Common ragweed plants germinating after this date were unable to compete with the crop: although they survived, they remained small (ca. 70% reduction in height), produced ca. 90% less male inflorescences (source of the allergenic pollen), and caused no significant reduction in the crop yield. In order to stop the seed production by the few late-germinating weed plants we recommend a mechanical common measure (row-cultivator) in late August.
关键词：Ambrosia artemiisifolia;acetolactate synthase;allergenic pollen;common ragweed;herbicide resistant sunflower;weed control;Ambrosia artemiisifolia;l'ALS;le pollen allergénique;petite herbe à poux;résistant aux herbicides tournesol;contrôle des mauvaises herbes;Ambrosia artemiisifolia;sintasi acetolattato;polline allergenico;ambrosia;resistente agli erbicidi girasole;controllo delle infestanti
其他关键词：Ambrosia artemiisifolia; acetolactate synthase; allergenic pollen; common ragweed; herbicide resistant sunflower; weed control