2020 Cilt 34 Sayı 2
Permanent URI for this collectionhttps://hdl.handle.net/11452/14504
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Browsing by Author "Aydoğan, Çiğdem"
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Item Evaluation of nineteen potato cultivars for salt tolerance and determination of reliable parameters in tolerance(Bursa Uludağ Üniversitesi, 2020-10-01) Aydoğan, Çiğdem; Turhan, EceThis investigation was aimed to explore the varietal differences in salinity tolerance of potato (Solanum tuberosum L.) plants by linking the overall salinity tolerance with changes in different morphological and physiological characteristics. Nineteen currently used potato cultivars were grown under controlled conditions in greenhouse at 25-18 (±2) °C (day/night), 70% relative humidity under non-saline and 5dS m-1 NaCl conditions for 90 days. For this purpose, tubers were planted in 14L pots, containing soil: peat: vermiculite (3:1:1). Salt treatment was started 1 week after all the seedlings where emerged. Salt stress tolerance of potato plants were determined with visual damage scale, cell membrane injury analysis and malondialdehyde (MDA) content, the indicator of lipid peroxidation. Leaf relative water content (RWC), loss of turgidity (LT) and total soluble protein (TSP) content were also examined. In addition, the protein profiles of leaf tissues of plants were evaluated by SDS-PAGE. In conclusion; among 19 potato cultivars evaluated cvs. Bettina, Challenger, Granola, Lady Claire, Musica and Orchestra were the most susceptible, cvs. Desiree and Russet Burbank were the most tolerant to salt stress. The data indicated that the low cell membrane injury and MDA content made cvs. Desiree and Russet Burbank relatively salt-tolerant cultivars. Besides, it is concluded that, visual damage scale and SDSPAGE protein profiles also could be used as biomarkers in salt stress tolerance of potato cultivars.