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首页> 外文OA文献 >Growth disturbance of extracts from several crops straw (residue) on Ageratina adenophora and biological-control implications in hazardous weed invasion for eco-restoration
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Growth disturbance of extracts from several crops straw (residue) on Ageratina adenophora and biological-control implications in hazardous weed invasion for eco-restoration

机译：几种农作物秸秆（残渣）提取物对紫茎泽兰的生长干扰以及对有害杂草入侵进行生态修​​复的生物防治意义

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Laboratory biological simulation experiment was conducted to investigate growth disturbance of high, moderate, low concentration of aqueous extracts (i.e. the original extracts with a solid liquid ratio of 1:40 g mL-1 and its 5 times diluents and 25 times diluents) from several crops straw (residue) on Ageratina adenophora, a worldwide notorious invasive weed. The results showed: (a) aqueous extracts from several crops straw (residue) brought about different impacts on the single index for germination and growth of A. adenophora, e.g., high concentration of aqueous extracts from Brassica oleracea waste leaves showed a strong inhibition against the germination rate (GR) and germination index (GI) of A. adenophora, while high concentration of aqueous extracts from Vicia cracca straw showed a strong inhibition against radicle length (RL) and hypocotyl length (HL) of A. adenophora; (b) high concentration of aqueous extracts from B. oleracea waste leaves and high, moderate and low concentration of aqueous extracts from Oryza sativa straw and Triticum aestivum straw showed rather strong synthetic effects (inhibition) on GR and GI of A. adenophora, which could be chosen for the control over the seeds germination of A. adenophora; (c) high and moderate concentrations of aqueous extracts from V. cracca straw, high concentration of aqueous extracts from B. campestris waste leaves, and moderate and low concentrations of aqueous extracts from O. sativa straw and T. aestivum straw showed rather strong synthetic effects (inhibition) on RL and HL of A. adenophora, which could be selected as ideal materials for the control over the seedlings growth of A. adenophora; and (d) high concentrations of aqueous extracts from V. cracca straw, B. oleracea waste leaves and B. campestris waste leaves, and high, moderate and low concentrations of aqueous extracts from O. sativa straw and T. aestivum straw showed rather strong synthetic effects (inhibition) on GR, GI, RL and HL of A. adenophora, which could be selected as ideal materials for the control over the seeds germination and seedlings growth of A. adenophora. Thus, this study would provide a theoretic guidance and technical support for the resources utilization of crops straw (residue) and the prevention and control over invasive weeds as well. (C) 2013 Elsevier B.V. All rights reserved.
机译：进行了实验室生物学模拟实验，以研究高，中，低浓度水提取物（即固液比为1:40 g mL-1的原始提取物及其5倍稀释剂和25倍稀释剂）的生长干扰。在全世界臭名昭著的入侵杂草Ageratina adenophora上种草（残留）。结果表明：（a）几种农作物秸秆（残留物）的水提物对紫茎泽兰的萌发和生长的单一指数产生了不同的影响，例如，高浓度的甘蓝废叶中的水提物显示出强烈的抑制作用。紫茎泽兰的发芽率（GR）和发芽指数（GI），而高浓度的野豌豆秸秆水提取物对紫茎泽兰的胚根长度（RL）和下胚轴长度（HL）有很强的抑制作用； （b）高浓度的油菜双歧叶废水提取物以及高，中，低浓度的稻草和普通小麦的水提取物对紫茎泽兰的GR和GI表现出较强的合成作用（抑制作用）。可以选择用于控制紫茎泽兰种子萌发的植物； （c）高和中浓度的V. cracca稻草的水提物，高浓度的B. campestris废叶的水提物和中低浓度的稻草和普通小麦的水提物显示出很强的合成能力对紫茎泽兰RL和HL的影响（抑制），可作为控制紫茎泽兰幼苗生长的理想材料； （d）高浓度的巴西面包草，B。oleracea废叶和B. campestris废叶的水提取物，以及高，中和低浓度的稻草和普通小麦的水提取物显示出较强的浓度。紫茎泽兰GR，GI，RL和HL的合成效应（抑制），可作为控制紫茎泽兰种子发芽和幼苗生长的理想材料。因此，本研究将为农作物秸秆（残渣）的资源利用以及入侵杂草的防治提供理论指导和技术支持。 （C）2013 Elsevier B.V.保留所有权利。

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