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The size and shape of silver nanoparticles manufactured from aqueous extract of A. graveolens using SEM.
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This research investigated the effects of bio-silver nanoparticles (AgNPs) on proline content, peroxidase, and catalase enzyme activity of two Iraqi wheat (Triticum aestivum L.) cultivars (Ibaa 99 and Al-Rasheed) compared with NPK fertilizers. The biosynthesis of AgNPs from A. graveolens aqueous extract, and their characterization occurred through...
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... The influence of AgNPs in contrast with Nitrogen, Phosphorus, and Potassium (NPP) fertilizers on the proline information, POD, and CAT enzymes in two wheat cultivars named Ibaa 99 and AI-Rasheed was analyzed by (Atia & Oraibi, 2024). A graveolens extraction was used to create AgNPs, which were then investigated using X-ray scattering, and ultraviolet (UV) spectroscopy. ...
Salt stress is a major abiotic factor that adversely affects wheat growth, leading to biochemical imbalances and reduced crop productivity. In recent years, nanotechnology has emerged as a promising approach to mitigate the detrimental effects of salinity in plants. The objective of the research is to investigate the role of silver nanoparticles (AgNPs) in modulating the biomechanical properties of wheat (Triticum aestivum) under salt-stress conditions. The effect of seed priming AgNPs at concentrations of 0, 1, 2, 5, 10, and 15 mM was followed by exposure to 175 mM NaCl to induce salt stress. Taurine, starch content, catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) activity are used to evaluate the biochemical characteristics. Compare the growth and biochemical parameters under different conditions (control, salt stress, and AgNP treatments). Analyze the effect of various concentrations of AgNPs on wheat growth and stress-related biochemical responses. Results showed that the 175 mM NaCl salt stress significantly reduced shoot fresh and dry weights and taurine and starch content while increasing CAT, POD activities, and SOD activity. Seed priming with AgNPs improved wheat growth under normal and salt-stressed conditions, with higher concentrations (10 mM and 15 mM) showing enhanced shoot fresh and dry weight. Salt stress and combined AgNPs increase the levels of taurine and starch content while decreasing CAT activity and raising POD activity. The research highlights the potential of nanotechnology in sustainable agriculture and provides insights into the use of AgNPs for improving crop tolerance to adverse environmental conditions.
... However, the comparison treatment recorded with the lowest said duration (38.35 days). The reason for the prolonged period from 50% flowering to full maturity may refer to the role of paclobutrazol, which causes delay in aging in leaves prolonging the period to full maturity in crop plants (Strydhorst et al., 2018;Al-Hakam and Abdul-Alwahid, 2024;Atia and Oraibi, 2024). ...
... Although, nonsignificant differences emerged between the control and seed treatment variants with silver nanoparticles for the 1000-seed weight. Silver nanoparticles can contribute in improving the physiological and yield related traits in wheat crop (Ismailova and Azizov, 2022;Atia and Oraibi, 2024). ...
... However, the comparison treatment recorded with the lowest said duration (38.35 days). The reason for the prolonged period from 50% flowering to full maturity may refer to the role of paclobutrazol, which causes delay in aging in leaves prolonging the period to full maturity in crop plants (Strydhorst et al., 2018;Al-Hakam and Abdul-Alwahid, 2024;Atia and Oraibi, 2024). ...
The presented study sought to determine the effects of the growth regulator paclobutrazol (0, 50, 100, and 150 mg L-1) on two wheat (Triticum aestivum L.) cultivars Ibaa-99 and Bhoth-22, carried out at the University of Basrah, Iraq. The experiment layout had a randomized complete block design with two factors and three replications. The results showed the cultivar Ibaa-99 was superior in plant height and days from 50% flowering to full maturity, with average values of 88.08 cm and 40.88 day, respectively. The cultivar Bhoth-22 was superior in chlorophyll content, number of tillers, days of planting up to 50% flowering, and flag leaf area. Their averages were 460 mg m-2 , 576.33 tiller m-2 , 103.85 days, and 39.76 cm 2 , respectively. Foliar coefficients of the growth regulator paclobutrazol showed significant differences. The highest concentration of Paclobutrazol (150 mg L-1) revealed the topmost average number of days from 50% flowering to full maturity (45.65 day), while the Paclobutrazol at 100 mg L-1 had the maximum average chlorophyll content, flag leaf area, and tillers per plant in wheat. Key findings: The wheat (T. aestivum L.) cultivar Bhoth-22 proved leading in chlorophyll content, tillers per plant, days to 50% flowering, and flag leaf area. For the traits plant height and days from 50% flowering to full maturity, the cultivar Ibaa-99 was superior to the cultivar Bhoth-22. Paclobutrazol (100 mg L-1) foliar application was superior in most characteristics under study. Interaction of cultivar Bhoth-22 with Paclobutrazol (100 mg L-1) gave the highest averages for leaf chlorophyll content, flag leaf area, and tillers per square meter. Citation: Obaid AR, Alrubaiee SHA, Al-Abody MAK (2025). Response of wheat crop to foliar application of growth regulator paclobutrazol. SABRAO J. Breed. Genet. 57(1): 270-276. http://doi.
