Anwar Iqra, Bibi Safura, Mahmood Athar, Zia Muhammad Anjum, Javaid Muhammad Mansoor, Ali Liaqat, Nadeem Muhammad Ather, Naeem Zunaira, Al-Ashkar Ibrahim, Gharzeddin Kifah, Ayman El Sabagh
Department of Botany, University of Agriculture, Faisalabad, 38040, Pakistan.
Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan.
BMC Plant Biol. 2025 Aug 25;25(1):1123. doi: 10.1186/s12870-025-06644-1.
Drought stress reduces growth, yield, and photosynthetic efficiency in pea plants, limiting nutrient uptake and requiring mitigation strategies. Salicylic acid plays a key role in plant development, and pea (Pisum sativum L.) ranks fourth in global production. A pot experiment was conducted to evaluate the effect of salicylic acid on two pea cultivars viz: Super Classic and Madarna, under water stress conditions at the Botanical Garden Research Area, University of Agriculture Faisalabad PARS, in 2021. Salicylic acid was applied as a foliar spray at concentrations of 0 (control), 50 ppm, 100 ppm, and 150 ppm. Drought stress was imposed at two levels: 100% field capacity (FC) and 75% FC. The experiment was conducted in completely randomized design (CRD) with a factorial arrangement and each treatment was replicated three times. The analysis revealed that drought intervals significantly affected various growth indicators, including fresh and dry weights of both shoots and roots, their lengths, physiological pigments such as chlorophyll and carotenoids, ionic contents of Na + , K + , and Ca2 + , and the overall yield. Notably, the application of 150 ppm salicylic acid effectively mitigated the effects of drought stress in pea plants. In conclusion, salicylic acid demonstrated beneficial effects against drought in pea plants by enhancing growth and yield while protecting photosynthetic pigments. Additionally, the Super Classic variety exhibited greater growth compared to Madarna when treated with salicylic acid at the 150 ppm concentration under drought stress.
干旱胁迫会降低豌豆植株的生长、产量和光合效率，限制养分吸收，因此需要采取缓解策略。水杨酸在植物发育中起关键作用，而豌豆（Pisum sativum L.）的全球产量排名第四。2021年，在费萨拉巴德农业大学植物园研究区进行了一项盆栽试验，以评估水杨酸对两个豌豆品种即超级经典和马达纳在水分胁迫条件下的影响。水杨酸以0（对照）、50 ppm、100 ppm和150 ppm的浓度进行叶面喷施。干旱胁迫设置两个水平：100%田间持水量（FC）和75% FC。试验采用完全随机设计（CRD），因子排列，每个处理重复三次。分析表明，干旱间隔显著影响各种生长指标，包括地上部和根部的鲜重和干重、长度、叶绿素和类胡萝卜素等生理色素、Na +、K +和Ca2 +的离子含量以及总产量。值得注意的是，施用150 ppm水杨酸有效地减轻了豌豆植株干旱胁迫的影响。总之，水杨酸通过促进生长和提高产量同时保护光合色素，对豌豆植株的干旱胁迫显示出有益作用。此外，在干旱胁迫下，当用150 ppm浓度的水杨酸处理时，超级经典品种比马达纳表现出更大的生长量。
