干旱应激缓解和改善产量在甘氨酸最大通过叶子应用的氧化纳米颗粒
Shahin Shirvani-Naghani1, Sina Fallah2, Lok Raj Pokhrel3
1Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran.
Scientific reports
|November 13, 2024
概括
氧化纳米颗粒 (ZnO-NPs) 有效地减轻大豆作物的干旱压力. 在叶子上应用ZnO-NPs可显著提高大豆产量,并在缺水条件下增强植物的弹性.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 纳米技术在农业中的应用
背景情况:
- 气候变化加剧了农业面临的挑战,因为水供应减少,干旱压力增加,特别是影响夏季作物.
- (Zn) 补充正在成为管理农业系统干旱压力的可行策略.
- 大豆 (糖氨酸最大变量. 沙巴) 是一个重要的夏季作物,容易受到干旱引起的产量损失.
研究的目的:
- 评估叶子应用的氧化纳米颗粒 (ZnO-NPs) 与常规硫酸 (ZnSO4) 在减轻大豆干旱压力的有效性.
- 在干旱和非干旱条件下评估ZnO-NP对关键生理参数和种子产量的影响.
- 为了确定ZnO-NPs的最佳度,用于大豆的干旱压力管理.
主要方法:
- 实地研究是对大豆进行的 (Glycine max var. 沙巴) 在受控制的干旱 (有限的灌) 和非干旱 (70%的田地容量) 条件下.
- 氧化物纳米颗粒 (ZnO-NPs) 在200毫克Zn/L和硫酸盐 (ZnSO4) 在400毫克Zn/L的叶子应用在开花阶段进行了两次.
- 测量包括相对含水量,叶绿素含量 (a和b),抗氧化酶活性 (catalase,过氧化酶,超氧化物失调酶),素含量和种子产量.
主要成果:
- 干旱显著减少了未经处理的植物中的相对水含量,叶绿素a和叶绿素b分别减少了35.7%,47.7%和41.4%.
- 在干旱期间,ZnO-NPs (200 mg Zn/L) 处理与ZnSO4 (400 mg Zn/L) 相比,增加了33.1%和20.7%的叶绿素a和叶绿素b,并增强了抗氧化活性.
- 在干旱 (39%的增长) 和非干旱 (79.4%的增长) 条件下,ZnO-NPs (200毫克Zn/L) 处理产生了最高的种子产量,同时也抑制了压力诱导的普林积累.
结论:
- 氧化物纳米颗粒 (ZnO-NPs) 的叶子应用是提高干旱压力下的大豆种子产量的一种高度有效的策略.
- 通过增加光合作用色素,提高抗氧化能力,保持含水量,减少烯积累,ZnO-NP提高干旱耐受性.
- 建议以200mg Zn/L的叶子应用率作为ZnO-NPs,以有效地控制干旱压力和提高大豆产量.
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