Effect of Seed Adaptability on K and Na Concentration and Some Growth Properties of Wheat under Salt Stress

Abstract

     Worldwide, salinity is a key abiotic factor that restricts plant development and agricultural output. Plant growth regulators have been shown to minimize the negative effects of salt. The current study examined the effects of 6-Benzylaminopurine, gibberellin, and melatonin on wheat, which is a salt-tolerant grain crop used in most countries throughout the world. ‎‎ Before planting, a field experiment was carried out using three wheat cultivars (Al-Ezz, Dijlah, and Al-Rasheed) under the impact of five combinations of tempering seeds (Seed Adaptability with salts (control 1)، Seed Adaptability + Benzyl stimulation, Seed Adaptability + Gibberellin stimulation, Seed Adaptability + Melatonin stimulation)، all of them. It was irrigated with salt well water (6 dS. m^-2) in addition to control treatment 1, which was not hardened or stimulated and was irrigated with river water. ‏‎ The leaves content of potassium and sodium was evaluated. The Dijlah and Al-Rasheed cultivars were superior to 3.40 and 3.10 with the highest potassium content, while Al-Ezz cultivar had the highest sodium content of 0.238. The area of ​​the flag leaf increased at the top of the branches and the biological yield of Al-Rashid cultivar (19.6 cm2 and 43.6 branch cm2 and 126.06 gm cm-2), while Dijlah  cultivar achieved the highest root weight of 0.568 gm. Treating the combinations of salt-Adaptability  treatment + melatonin increased the area of ​​the flag leaf and the potassium concentration in elemental sodium (14.03 cm-2, 3.866 and 0.167), the treatment of the treatment that was not exposed to salt stress outperformed, and this was positively reflected on the rest of the studied traits. It is clear from the above that melatonin can relieve salt stress in plants by affecting their metabolic or physiological frameworks. The application of melatonin is an effective management strategy to mitigate salt stress in order to increase agricultural production and sustainability.