20.500.12556/RUL-177213 Modulation of yield and physiological attributes of cumin (Cuminum cyminum L.) by silicon dioxide nanoparticles under varying drought stresses Modulacija pridelka in fizioloških lastnosti rimske kumine (Cuminum cyminum L.) z nanodelci silicijevega dioksida pri različnih sušnih stresih Water scarcity, exacerbated by climate change and population growth, threatens sustainable agriculture, particularly in arid regions. This study investigated the potential of silicon dioxide nanoparticles (nSi) to mitigate drought stress in cumin (Cuminum cyminum L.). A split-plot experiment, arranged in a randomized complete block design with three replications, was conducted over two cropping seasons in Bafgh, Iran. Drought stress was applied as the main factor at four levels (80%, 60%, 40%, and 20% of field capacity, FC), while subplots contained four nSi concentrations (0, 2, 4, and 6 mM). Results showed that severe drought stress (20% FC) significantly increased peroxidase activity (5.5-fold) and malondialdehyde levels (3.7-fold), while decreasing total chlorophyll (49%), seed yield (81%), and essential oil yield (64%). However, applying 4 mM nSi significantly alleviated drought stress by preserving TChl, and sustaining POD activity, resulting in lower MDA levels and improved SY and EOY. In contrast, 6 mM nSi did not mitigate drought stress and worsened its effects. These findings indicate that 4 mM nSi can enhance cumin's resilience and productivity under drought, while higher concentrations should be avoided. seed yield essential oil yield malondialdehyde eroxidase activity pridelek semena pridelek eteričnega olja malondialdehid aktivnost peroksidaze true false true Angleški jezik Slovenski jezik Članek v reviji 2025-12-17 15:36:39 2025-12-17 15:36:45 2025-12-29 03:50:02 0000-00-00 00:00:00 2025 0 0 11 str. no. 4 Vol. 121 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 63 1854-1941 10.14720/aas.2025.121.4.23310 261922051 View_of_Modulation_of_physiological_and_yield_attributes_of_cumin_(Cuminum_cyminum_L.)_by_silicon_dioxide_nanoparticles_under_varying_drought_stresses.pdf View_of_Modulation_of_physiological_and_yield_attributes_of_cumin_(Cuminum_cyminum_L.)_by_silicon_dioxide_nanoparticles_under_varying_drought_stresses.pdf 1 53E8464E2AE88E25B663A5E0D7A10BAF cc7b6423e88819621acce6ce6e1535f5e6465919d4172e27b02d870a00be154b 7b62dcd0-db55-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=224126 https://journals.uni-lj.si/aas/article/view/23310/19895 1 60d515ee-db55-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=224125 Biotehniška fakulteta Acta agriculturae Slovenica 0 0 0