Maize roots responses to osmotic stress
2010
Kravić, N., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Vuletić, M., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Anđelković, V., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia)
Field testing for drought tolerance was performed on 6,000 accessions from the Maize Research Institute Zemun Polje (Serbia) gene bank, under severe drought conditions in Egypt, as well as, under moderate climate conditions in Zemun Polje (Serbia) and Skopje (the Former Yugoslav Republic of Macedonia). Five inbred lines, considered as drought tolerant, were chosen for further investigations under controlled experimental conditions. Osmotic stress caused by drought is one of the most important abiotic stresses. In this study osmotic stress was applied with polyethylene glycol (PEG) 10 000. The response to the PEG treatment of these genotypes was analysed in respect to their root morphology, root length, root fresh and dry weight, proline content and peroxidase activity. Results showed that the root development was less in all genotypes under the PEG treatment. The proline content increased, while the peroxidase activity declined in PEG-treated plants.
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