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  • 1 Polish Academy of Sciences The Franciszek Górski Institute of Plant Physiology Niezapominajek 21 30-239 Kraków Poland
  • | 2 Agricultural University Department of Plant Physiology, Faculty of Agriculture and Economics Podłużna 3 30-239 Kraków Poland
  • | 3 Danko Plant Breeders Ltd. Choryń 27 64-000 Kościan Poland
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PEG-6000 induced osmotic stress caused differences in the relative water content (RWC), in the leaves of tested varieties of winter triticale. The highest values of RWC were observed for the Hortenso, Kazo and Gniewko varieties. The observed, low values of osmotic potential, allow one to conclude, that these varieties have adapted to stress conditions by maintaining the osmoregulation. Since osmotic tolerance is part of drought tolerance, the ability to maintain the osmotic regulation can be an important factor in the selection of varieties/genotypes resistant to the water deficit in the soil. The effectiveness of the photosynthetic apparatus was observed for above-mentioned varieties, with high values of RWC. The response test to the osmotic stress induced by the PEG solution, carried out under laboratory conditions, justified the decision to include Timbo in the group of drought resistant plants and as a standard physiological response to drought.

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Cereal Research Communications
Language English
Size B5
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1973
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ISSN 0133-3720 (Print)
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