Black Sea Journal of Agriculture, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 4, 2024
Potassium is an essential nutrient that influences key processes in plants, including osmotic regulation, photosynthesis, and nitrogen assimilation. This study investigated the drought tolerance of wheat (Triticum spp.) plants treated with sufficient potassium (SK, 1 mM) low (LK, 0.05 under PEG-induced stress. Plant physiological development, canopy temperature, photosynthetic efficiency, antioxidant defense enzymes, assimilation enzymes were assessed. In non-drought conditions, LK increased temperature reduced dry matter yield performance, these effects becoming more pronounced SK-treated exhibited higher biomass, chlorophyll content, maximum quantum efficiency photosystem II, lower temperatures, even conditions. Furthermore, restricted accumulation regulators, proline, amino acids, soluble sugars. Under stress, also showed hydrogen peroxide superoxide anion levels, while SK had reactive oxygen species enzyme activities (catalase dismutase). Additionally, resulted activity (nitrate reductase, NR, nitrite NiR) both normal contrast, seedlings maintained NR NiR protein content during These findings underscore critical role management enhancing yield, particularly water-scarce regions, as optimal supply strengthens biochemical mechanisms improve plant to
Language: Английский
