Salinity is one of the significant widespread environmental stress that can limit the growth and development of plants. An experiment was conducted to find how the indole-3-acetic acid (IAA) ameliorates the effect of salinity (NaCl) on biomass production, physiological, biochemical, and yield attributes Brinjal (Solanum melongena L.). Four eggplant varieties (Signath 666, Cluster King, Black Round, and Desi) were treated with two levels of treatment with salt (Control, 80 mM NaCl) and foliar-applied indole-3-acetic acid (IAA) (Control, 2 mM IAA). The experiment was designed based on three replications and an utterly random structure. Physiological, biochemical, vegetative, and yield attributes were measured during the experiment. The results revealed that salinity at 80 mM affected the physiological and biochemical parameters that inhibited growth rate and resulted in yield reduction of brinjal plants. The foliar application of IAA overcame this reduction. However, some biochemical attributes, e.g., leaf proline, leaf glycine betaine analysis, and antioxidant enzyme activities, increased under salt stress. Overall, our results demonstrated that the salt-induced harmful effect was overcome by the exogenously applied IAA and increased biomass production, physiological, biochemical, and yield attributes in brinjal varieties.

盐度是可以限制植物生长和发育的重要的广泛环境压力之一。进行了一项实验，以发现 3-吲哚乙酸 (IAA) 如何改善盐度 (NaCl) 对茄子 (Solanum melongena L.) 生物质生产、生理、生化和产量属性的影响。四种茄子品种（Signath 666、Cluster King、Black Round 和 Desi）用盐（对照，80 mM NaCl）和叶面施用的吲哚-3-乙酸（IAA）（对照，2 mM）两种处理水平进行处理IAA）。该实验是基于三个重复和完全随机的结构设计的。在实验过程中测量了生理、生化、营养和产量属性。结果表明，80 mM 的盐度会影响生理和生化参数，这些参数会抑制生长速度并导致茄子植物的产量减少。IAA 的叶面施用克服了这种减少。然而，一些生化属性，例如叶脯氨酸、叶甘氨酸甜菜碱分析和抗氧化酶活性，在盐胁迫下增加。总体而言，我们的结果表明，外源施用 IAA 和增加茄子品种的生物质产量、生理、生化和产量属性克服了盐引起的有害影响。盐胁迫下增加。总体而言，我们的结果表明，外源施用 IAA 和增加茄子品种的生物质产量、生理、生化和产量属性克服了盐引起的有害影响。盐胁迫下增加。总体而言，我们的结果表明，外源施用 IAA 和增加茄子品种的生物质产量、生理、生化和产量属性克服了盐引起的有害影响。