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  • ASTM E1913-04(2012)
    在裝有浸入式水生大型植物狐尾藻屬SIBIRICUM蜀試驗管里進行靜態、無菌和14日植物性試驗

    Standard Guide for Conducting Static, Axenic, 14-Day Phytotoxicity Tests in Test Tubes with the Submersed Aquatic Macrophyte, Myriophyllum sibiricum Komarov

    2012-11

    標準號
    ASTM E1913-04(2012)
    發布
    2004年
    發布單位
    美國材料與試驗協會
    當前最新
    ASTM E1913-04(2012)
     
     
    引用標準
    ASTM D1129 ASTM D1193 ASTM D3731 ASTM D3978 ASTM E1023 ASTM E1192 ASTM E1218 ASTM E1415 ASTM E1598 ASTM E1733 ASTM E1841 ASTM E1847 ASTM E729 ASTM E943
    適用范圍
    5. Significance and UseTop Bottom

    5.1 Protection of aquatic areas is currently being emphasized by several agencies including the U.S. Environmental Protection Agency and Environment Canada. For pesticide registration, these agencies are beginning to require data regarding the toxicity of test chemicals to aquatic rooted vascular plants (25-28).

    5.2 Toxicological research with terrestrial and aquatic vascular plants has been initiated (29) including the development of a protocol for testing with emergent macrophytes (Guide E1841) (30). However, protocols for phytotoxicity testing with freshwater submersed plants still require development. Toxicological research has been conducted using submersed macrophytes (1-8, 31-35) but standardization of the methods is required.

    5.3 This guide is designed to assess the phytotoxic effects of chemicals upon a selected freshwater species of submersed aquatic macrophyte, Myriophyllum sibiricum Komarov. This species is an ecologically important submersed aquatic dicotyledon with a north temperate distribution. It is readily cultured in test tubes in the laboratory (36). Lower temperatures in autumn initiate the formation of turions on lateral branches that develop into new plants when environmental conditions become favorable (19-23). Toxicological testing with this species has demonstrated that it is an ideal species for labor......

    :明明可以靠臉吃飯,偏偏要靠才華!

    此外,由于高營養及低密度條件下典型沉水穗花(穗花,小二仙草科植物,沉水草本,為歐亞大陸廣布種)的相對生長速率要明顯高于低營養及高密度環境。這也就意味著,高營養及低密度環境下可以迅速擴張,這對于沉水植物種群擴張的調控作用,及濕地植被生態恢復都有積極的促進作用。[3]真的能致富?...





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