Akademik Veri Yönetim Sistemi
International Conference on Sustainable Science and Technology (ICSUSAT 2023), İstanbul, Türkiye, 14 - 16 Temmuz 2023, cilt.1, sa.1, ss.67
Salt stress is one of the main abiotic stresses, that negatively affect sustainable crop production, agricultural productivity, and yields all over the world. Therefore, salt stress limits the growth and yield of barley (Hordeum vulgare L.). In this study, some physiological effects were conducted at different salt concentrations (0, 50, 100, 200 mM NaCl) in 27 H. vulgare varieties (Cumhuriyet-50, Kalaycı-97, Erginel-90, Bilgi-91, Hamidiye-85, İnce-04, Keser, Sabribey, Çıldır, Ünver, Güzak, Yüksel, Özdemir, Hazar, Yaba, Yaprak, Pınar, Bolayır, Ocak, Harman, Helke, Karatay-94, Larende, Keykubat, Ayrancı, Konevi-98, Kıral- 97) grown in Turkey. For this purpose, the effects of salt stress on germination percentages, root and shoot lengths, total pigment contents (SPAD), specific leaf areas (SLA), histochemical staining of hydrogen peroxide (H2O2) and superoxide anion (.O2ˉ) amounts on 7-d-old barley seedlings were investigated. Our results showed that short-term salt stress decreased root and shoot lengths, SLA, and total pigment contents in some barley cultivars. It was determined that Erginel-90, Kıral-97, Ayrancı, Yaprak, and Yaba varieties were less affected by salt stress and were more resistant to salinity than other cultivars. The ROS levels in salt- sensitive and salt-tolerant varieties were determined by the histochemical staining method. According to this, the amount of both .O2ˉ and H2O2 were determined to be more localized in Yüksel, Pınar, Ünver, Güzak, Bolayır, Harman, Sabribey, Keser and Cumhuriyet-50 varieties compared to other varieties. On the contrary, they were less localized in Erginel-90, Kıral-97, Ayrancı, and Larende varieties. In addition, Kalaycı-97, Karatay-94, Konevi-98, Çıldır-02, Ocak, and Yaprak varieties were found to be moderately tolerant to salt stress based on their germination percentages.