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<p>Salicylic acid (SA) application is one of several viable strategies for alleviating various environmental stressors, including metal (Cr). The present study was conducted to evaluate the effects of SA addition on the production and quality management of pea variety, i.e., HFP 8909, under different chromium (Cr) treatments (0.15&#xa0;mM, 0.3&#xa0;mM of Cr<sup>6+</sup> and 1&#xa0;mM, 2&#xa0;mM, 3&#xa0;mM of Cr<sup>3+</sup>) with or without SA (0, 0.5&#xa0;mM and 1&#xa0;mM) treatment compared to healthy control plants. A completely randomized design was set up for the experiments. Increasing Cr concentrations from mild to severe levels led to a decline in plant growth and crop yield. We found that Cr stress negatively impacts the antioxidant activity of pea plants and&#xa0;the quality of the protein and carbohydrate contents of the seeds. Cr stress significantly reduced yield metrics, including the number of pods, length of plant, and seed production (<i>p</i> &lt; 0.05). The negative impact of Cr stress was most pronounced in severe stress of both Cr<sup>6+</sup> and Cr<sup>3+</sup> treatments. However, the amendment of SA (0.5&#xa0;mM) had no substantial impact on yield parameters, but SA (1&#xa0;mM) enhanced the antioxidant defense system of pea plants under severe Cr stress. SA (1&#xa0;mM) treatment improved the nutritional quality of pea seeds by improving their carbohydrate and protein contents, which was influenced by Cr stress conditions. Furthermore, SA (1&#xa0;mM) under high stress (0.3&#xa0;mM of Cr<sup>6+</sup> and 3&#xa0;mM of Cr<sup>3+</sup>) significantly increased pod numbers by 30.7% and 41%, seed weight by 8.1% and 9.3%, 100-seeds weight by 37.5% and 30%, biological yield by 42% and 46.6%, seed yield by 105.8% and 135.6%, and harvest index by 44.8% and 60.8% in HFP8909 variety. All treatments (Cr<sup>6+</sup> and Cr<sup>3+</sup>) showed the suggested effect of SA (1&#xa0;mM) in promoting Cr tolerance. Different plant species may respond variably to SA treatment, and a 1&#xa0;mM dose of SA is suggested for optimal advantages while reducing expenses.</p> Graphical Abstract <p></p>

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Assessment of yield and quality management with the exogenous administration of salicylic acid in pea during chromium metal stress

  • 期刊论文

  • 发表日期：

    2025年10月13日

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  • Priyanka Yadav,
  • Shruti Jha,
  • Asha Sharma,
  • Sandeep Singh

摘要

Salicylic acid (SA) application is one of several viable strategies for alleviating various environmental stressors, including metal (Cr). The present study was conducted to evaluate the effects of SA addition on the production and quality management of pea variety, i.e., HFP 8909, under different chromium (Cr) treatments (0.15 mM, 0.3 mM of Cr6+ and 1 mM, 2 mM, 3 mM of Cr3+) with or without SA (0, 0.5 mM and 1 mM) treatment compared to healthy control plants. A completely randomized design was set up for the experiments. Increasing Cr concentrations from mild to severe levels led to a decline in plant growth and crop yield. We found that Cr stress negatively impacts the antioxidant activity of pea plants and the quality of the protein and carbohydrate contents of the seeds. Cr stress significantly reduced yield metrics, including the number of pods, length of plant, and seed production (p < 0.05). The negative impact of Cr stress was most pronounced in severe stress of both Cr6+ and Cr3+ treatments. However, the amendment of SA (0.5 mM) had no substantial impact on yield parameters, but SA (1 mM) enhanced the antioxidant defense system of pea plants under severe Cr stress. SA (1 mM) treatment improved the nutritional quality of pea seeds by improving their carbohydrate and protein contents, which was influenced by Cr stress conditions. Furthermore, SA (1 mM) under high stress (0.3 mM of Cr6+ and 3 mM of Cr3+) significantly increased pod numbers by 30.7% and 41%, seed weight by 8.1% and 9.3%, 100-seeds weight by 37.5% and 30%, biological yield by 42% and 46.6%, seed yield by 105.8% and 135.6%, and harvest index by 44.8% and 60.8% in HFP8909 variety. All treatments (Cr6+ and Cr3+) showed the suggested effect of SA (1 mM) in promoting Cr tolerance. Different plant species may respond variably to SA treatment, and a 1 mM dose of SA is suggested for optimal advantages while reducing expenses.

Graphical Abstract