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SM ISO690:2012 PAWŁOWSKA, Barbara, BICZAK, Robert, TUREK, Marika, BAŁCZEWSKI, Piotr, MARCINIAK, Bernard, DESKA, Małgorzata, RÓŻYCKA-SOKOŁOWSKA, Ewa. Comparison of phytotoxicity of bis (alkylammonium) 2,2'-thiodioacetates. In: Ecological and environmental chemistry : - 2017, Ed. 6, 2-3 martie 2017, Chișinău. Chisinau, Republic of Moldova: Academy of Sciences of Moldova, 2017, Ediția 6, p. 54. |
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Ecological and environmental chemistry Ediția 6, 2017 |
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Conferința "Ecological and environmental chemistry 2017" 6, Chișinău, Moldova, 2-3 martie 2017 | ||||||
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Pag. 54-54 | ||||||
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Quaternary ammonium salts (QAS) are very important chemicals for industry and agriculture. QAS are known for a long time and their various properties, such as frother-like, moisturizing, emulsifying, surfactant, anti-electrostatic, preserving, algaecidal, antifungal, anticancer and bactericidal resulted in worldwide production of 1 million tons at the end of the twentieth century [1]. Production and usage of such a huge quantity of these compounds must affect natural environment and humans [2]. In the present work, the influence of bis(diisopropylammonium) 2,2’-tiodiacetate (disalt), bis(diisobutylammonium) 2,2’-tiodiacetate (disalt) and bis(tert-butylammonium) 2,2’-tiodiacetate (disalt), introduced to the soil, on germination and early stages of growth and development of terrestrial plants has been investigated using the plant growth test based on OECD/OCDE 208/2006 [3]. In this test, the seeds of selected species of terrestrial plants – spring barley (Hordeum vulgare) and common radish (Raphanus sativus L. subvar. radicula Pers.) were planted in pots containing soil to which a tested chemical compound was added and in pots with control soil. In order to determine phytotoxicity of the above 2,2’-tiodiacetates, the growth inhibition of the tested plants and EC50 values have also been determined. The visual assessment of any types of damage of the test species, such as growth inhibition, chlorosis and necrosis, was also carried out and depicted in digital photographs. |
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