Glycine betaine seed priming to induce salt stress tolerance in durum wheat (Triticum durum Desf.)
1 Field Crops Laboratory, National Agricultural Research Institute of Tunisia, INRAT, University of Carthage, Tunis, Ariana 2049, Tunisia.
2 Laboratory of Support for the Sustainability of Agricultural Production Systems in the Northwest Region LR14AGR04, University of Jendouba, Higher School of Agriculture of Kef, Boulifa, Kef.
3 Research Laboratory of Agricultural Production Systems and Sustainable Development, University of Carthage, Tunisia.
4 National Institute of Field Crops, Boussalem, Tunisia (INGC).
5 Faculty of Sciences of Bizerte, University of Carthage, Tunisia.
Research Article
GSC Advanced Research and Reviews, 2025, 22(01), 214-222.
Article DOI: 10.30574/gscarr.2025.22.1.0524
Publication history:
Received on 23 November 2024; revised on 14 January 2025; accepted on 17 January 2025
Abstract:
Salinity stress is an important environmental factor that limits plant growth and productivity in the world. The effect of seed priming with glycine betaine (GB) on the germination of four durum wheat varieties (Salim, Maâli, Monastir and Carioca) under salt stress conditions induced by sodium chloride (NaCl) were investigated. Three concentrations of GB (0, 50 and 100 mM) were tested under three levels of salt stress (0, 100 and 200 mM). The main results obtained showed significant effects of treatments and varieties on most studied traits. Salt stress had a negative effect on the germination and growth of wheat seedlings. However, seed priming with GB significantly improved seed germination under both no stress and salt stress conditions. Under severe salt stress conditions (200 mM NaCl), the highest values of germination percentage (65.5%), mean daily germination (0.825), vigor index (119.566), shoot length (0.568 cm) and root length (3.05 cm) were obtained using 50 mM GB. Consequently, the results of this study indicate that GB seed priming at 50 mM can to help durum wheat grow in salt-stress conditions.
Keywords:
Durum wheat; Salt stress; Seed priming; Betaine glycine
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