This study aimed to investigate the effect of salinity and water stress on the physiological and functional characteristics of winter wheat (Triticum aestivum L.) under the foliar application of plant growth regulators (PGRs). The experiment was carried out as a split plot based on a randomized complete block design with three replications in two environments. In each environment, water stress at two irrigation levels (after 90 and 120 mm of pan evaporation) and with two EC of 1.5 and 10 dS/m in the main plots and spraying of PGRs including salicylic acid (SA), gibberellic acid (GA₃), and cytokinins (CK) (purine) content with a concentration of 100 ppm and the control treatment (spraying solution with normal water) were placed in subplots. Results indicated that all treatments caused significant increases in functional and qualitative characteristics and yield of Triticum aestivum L. The saline environment and irrigation level after 120 mm of pan evaporation caused a reduction in grain yield in all traits except for seed proline, seed nitrogen content, and seed protein content. Also, the combined foliar application of GA₃ + CK + SA increased yield in most traits. The highest RWC of flag leaves was observed in the foliar application of GA₃ + SA (3.36 kg/ha) and then in the foliar application of GA₃ + SA + CK (57.87 kg/ha). GA₃ interacts with PGR spraying to balance another development under saline and non-saline conditions.

本研究旨在探讨叶面喷施植物生长调节剂（PGR）下盐分和水分胁迫对冬小麦（Triticum aestivum L. ）生理和功能特性的影响。该实验是基于随机完整区组设计的裂区图进行的，在两个环境中进行了三次重复。在每个环境中，在两个灌溉水平（蒸发盘蒸发 90 和 120 毫米后）和主要地块中两个 EC 分别为 1.5 和 10 dS/m 的水分胁迫下，喷洒植物生长调节剂，包括水杨酸 (SA)、赤霉酸 (GA) ₃ )、浓度为100ppm的细胞分裂素(CK)(嘌呤)含量和对照处理(用普通水喷洒溶液)置于子区中。结果表明，所有处理均导致小麦的功能和质量特征以及产量显着增加。盐分环境和蒸发量120毫米后的灌溉水平导致除种子脯氨酸、种子氮含量和种子蛋白质含量外的所有性状的籽粒产量下降。此外，叶面喷施 GA ₃  + CK + SA 提高了大多数性状的产量。旗叶RWC最高的是叶面喷施GA ₃  + SA（3.36 kg/ha），其次是叶面喷施GA ₃  + SA + CK（57.87 kg/ha）。 GA ₃与 PGR 喷洒相互作用，以平衡含盐和非含盐条件下的另一种发育。