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标题：Impact of the Application of Landfill Leachate on the Germination of Senna macranthera in Different Substrates
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作者：Heider Alves Franco ; Sérgio Thode Filho ; Daniel Vidal Pérez 等
期刊名称：Fronteiras: Journal of Social, Technological and Environmental Science
电子版ISSN：2238-8869
出版年度：2020
卷号：9
期号：2
页码：68-76
DOI：10.21664/2238-8869.2020v9i2.p68-76
出版社：Centro Universitário de Anápolis
摘要：Landfill leachate is a potential environmental pollutant. Physicochemical analyses allow identifying its elements while the use of ecotoxicological tests aims to understand the relation with the environment. The germination assay of Senna macranthera in different substrates (filter paper, commercial-SCM, conventional-SCV and organic-SOR) was performed with different doses of leachate. The objective was to identify the potential impact of leachate by determining the concentration able to cause inhibition in 50% of the seeds (LC50) and the values of the no observable effect concentration (NOEC) and the lowest observed effect concentration (LOEC). The LC50 and LOEC occurred in the treatments with 6.25 while NOEC was with 3.125%. The test in substrates, It was not possible to identify the LC50 in the SCM. For the SCV was with 66 and in SOR with 25%. The NOEC and LOEC for SCM and SCV were 25 and 50% and in SOR with 50 and 100%.
关键词：Phytotoxicity; Germination; Root elongation; Reuse.