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Seed germination of agricultural weeds is promoted by the butenolide 3-methyl-2H-furo[2,3-c]pyran-2-one under laboratory and field conditions

机译:丁烯内酯3-甲基-2H-呋喃并[2,3-c]吡喃-2-酮在实验室和田间条件下促进了农业杂草的种子发芽

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摘要

Here we report that a synthesised form of a naturally occurring chemical (a butenolide, 3-methyl-2H-furo[2,3-c]pyran-2-one) found in smoke can stimulate seedling emergence of the economically important weed species Avena fatua L. (Poaceae), Arctotheca calendula (L.) Levyns (Asteraceae), Brassica tournefortii Gouan (Brassicaceae), and Raphanus raphanistrum L. (Brassicaceae) under field conditions at rates equivalent to 2-20 g/ha a.i. The butenolide also stimulates germination of freshly collected seeds from wild populations of these species, as well as those of Sisymbrium orientale L. (Brassicaceae), Hordeum leporinum Link (Poaceae) and Echium plantagineum L. (Boraginaceae) under laboratory conditions, consistently greater than that of smoke water. Experiments using B. tournefortii seeds collected from several locations across Western Australia and in different growing seasons found that these factors significantly influence the butenolide response, implying a role of the maternal environment in seed germination/dormancy characteristics. This research highlights the potential of butenolide as an agent for broad acre weed control and land restoration.
机译:在这里,我们报告说,在烟雾中发现的一种天然存在的化学物质(丁烯内酯,3-甲基-2H-呋喃[2,3-c]吡喃-2-酮)的合成形式可以刺激经济上重要的杂草物种Avena的出苗。在田间条件下,等同于2-20 g / ha ai的肥大度(Poaceae),to科(Poaceae),金盏花(L.)Levyns(菊科),芸苔(Brassicaceae)甘蓝(Brassicaceae)和Raphanus raphanistrum L.(Brassicaceae)。丁烯内酯还可以在实验室条件下刺激从这些物种的野生种群中获得的新鲜采集的种子,以及在实验室条件下不断生长的东方Sisymbriume。L.(十字花科),大麦孢菌(Poaceae)和车前Echium plantagineum L.(Boraginaceae)的种子发芽。烟水。使用从澳大利亚西部多个地区以及不同生长季节采集的B. tournefortii种子进行的实验发现,这些因素显着影响丁烯内酯的响应,这暗示着母体环境在种子发芽/休眠特性中的作用。这项研究强调了丁烯内酯作为广泛的杂草控制和土地恢复的潜力。

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