2018

Fresenius Environmental Bulletin

Rocznik: 2018 | Tom: 27 | Numer: 3

artykuł naukowy

angielski

EN The quaternary pyridinium ketoximes are a wide range of applications, including used as pesticides, fungicides and extractants of metals from aqueous solutions. Their impact on soil and water is certainly of considerable concern at the time of their disposal. And form above, the interesting subject is evaluation of phytotoxicity of these compounds on plants. The study provides data about the synthesis a quaternary pyridinium ketoximes and the effects of different anions and lengths of alkyl chains linked to the pyridine ring on the development of maize. Inhibition of seed germination and plant development depend on concentration and chemical structure. The compounds with the biocompatible anion CH3COO- were more toxicity than quaternary salts with an inorganic anion at lower concentration, but a different situation was observed when the compounds were added to soil in highest concentrations (100 - 1000 mg kg(-1) of soil D.W.). The collected date on the quaternary pyridinium salts effect on the germination and early growth of maize, together with the literature data of the toxicity in other model systems, may be useful for assessing the potential risk of to humans, as well as guidelines for setting the legislation for their production and use.

1669 - 1680

http://www.prt-parlar.de/download_feb_2018

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