ORIGINAL PAPER
Impact of complexing compounds on germination and early development of maize (Zea mays L.)
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1
Poznan University of Technology, Institute of Chemical Technology and Engineering, ul. Berdychowo 4, 60-965 Poznan, Poland
 
2
Department of Agronomy, Poznań University of Life Sciences, Dojazd 11, 60-632 Poznan, Poland
 
3
Industrial Institute of Agricultural Engineering, Starolecka 31, 60-963 Poznan, Poland
 
 
Journal of Research and Applications in Agricultural Engineering 2016;61(4):96-100
 
KEYWORDS
ABSTRACT
The study focused on toxicity evaluation of selected complexing organic compounds (EDTA, rhamnolipids, quaternary pyridylketoximes and pyridineamidoximes) to monocot plant - maize (Zea mays L.) in aquatic and soil systems. Tests evaluating the seed germination and growth inhibition of shoot and root of maize were carried out at different compound concentrations (ranging from 0 to 1000 mg/kg of dry soil). It was observed that the presence of chelating compounds caused different effect on seed germination and early development of plant. The presence of complexing agents in aquatic system was more toxic than in soils and this toxicity depended on the type of chemical compounds as well as on the soil type. The cultivation on soil with chelating substance and polluted with heavy metals resulted in the strong inhibition of the maize seed germination and growth. From all the analyzed compounds synthetic EDTA was less toxic than others, like biosurfactant and new potential ligand of metals.
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