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首页> 外文会议>International Horticultural Congress on Horticulture for People >Nematotoxic Effects of a Hot Water Extract of Waste Asparagus Rootstocks on Root-Lesion Nematode (Pratylenchus penetrans)
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Nematotoxic Effects of a Hot Water Extract of Waste Asparagus Rootstocks on Root-Lesion Nematode (Pratylenchus penetrans)

机译：废芦笋砧木热水提取物对根病变线虫（PRATYLENCUS PENETRANS）的热水提取物的Nematotoxic作用

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Because asparagus (Asparagus officinalis) rootstocks contain anti-nematode substances, incorporating them into agricultural fields can control populations of root-lesion nematodes (Pratylenchus penetrans) during subsequent crop cultivation. However, direct incorporation of waste rootstocks risks transmission of soil diseases. We hypothesized that this could be avoided by using an aqueous extract from asparagus roots in place of the roots themselves. Here, we tested the nematotoxicity of the extract in comparison to cut roots, assayed for inter- and intra-individual variations in nematotoxicity, explored possible variations caused by cultivar type ('UC157' and 'Harumurasaki') or region (Gunma or Fukushima Prefectures) of plant origin, and investigated differences between extracts made from full and empty rootstock. We found that aqueous extracts were almost as nematotoxic as cut roots. Nematotoxicity did not vary greatly among plants, or between the roots and rhizomes of plants. Although the 'Harumurasaki' cultivar appeared to have slightly higher nematotoxicity, there were no major differences between 'UC157' cultivars from the two different prefectures. Finally, extracts made from full and empty roots had similar nematotoxicity. Cumulatively, these results indicate that aqueous extracts from asparagus rootstocks offer a way to control nematode populations without risking transmission of soil disease. Furthermore, because this method uses products that are otherwise regarded as waste, it offers a solution to an important agricultural waste disposal problem.
机译：因为芦笋（芦笋）砧木含有抗Nematode物质，将它们纳入农业领域可以控制随后的作物培养过程中根病变线虫（Pratylenchus Penetrans）的群体。然而，直接融入废砧木风险的土壤疾病的传播。我们假设通过使用来自芦笋根的水性提取物来避免这种情况来避免。在这里，我们测试提取物的Nematotoxicity与切割根，用于切割的根部和单一的内部内毒性变化，探讨由品种类型（'UC157'和'Harumurasaki'）或地区（群马或福岛县）引起的可能变化）植物来源，并研究了由全砧木制成的提取物之间的差异。我们发现含水萃取物几乎被切根作为切割根部的Nematotoxic。 Nematotoxicity在植物中或植物根和根茎之间没有变化。虽然“Harumurasaki”品种似乎具有稍高的Nematotoxicity，但来自两种不同县的“UC157”品种之间没有重大差异。最后，由完整和空根系制成的提取物具有相似的Nematotoxicity。累积地，这些结果表明来自芦笋砧木的水性提取物提供一种控制线虫种群的方法，而不会冒着土壤疾病传播。此外，由于这种方法使用否则被视为废物的产品，因此提供了一个重要的农业废物处理问题的解决方案。

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