提高草盐应激耐受性:对不同率和来源的形态生理反应
Peyman Kashani1, Ali Khanmirzaei2, Seied Mehdi Miri1
1Department of Horticultural Science, Ka. C., Islamic Azad University, Karaj, Iran.
Scientific reports
|December 28, 2025
概括
(Si) 施肥,特别是稳定酸和酸盐,有效地减轻草中的盐度压力. 这种方法增强了植物生理学和水果产量,为草种植提供了可持续的解决方案.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 环境科学 环境科学
背景情况:
- 盐度压力是主要的非生物压力因素,对草 (Fragaria × ananassa) 的产量和质量产生负面影响.
- (Si) 越来越多地被认为有助于提高植物对各种非生物应激的耐受性,包括盐度.
研究的目的:
- 研究不同来源和应用率在减轻草植物盐度压力的有效性.
- 为了评估对关键生理参数和盐水条件下的水果产量的影响.
主要方法:
- 进行了一个因数实验,使用四种叶子应用的来源 (纳米,有机,酸,稳定酸) 以三种速率 (0,10,30毫克Si L-1).
- 在一个随机的完整块设计中,草植物经历了两个盐度水平 (0和50毫米NaCl),并进行了三次复制.
- 测量包括使用Vis-NIR光谱和部分最小平方回归 (PLSR) 的含量,自由,水果产量和叶子含量.
主要成果:
- 稳定酸和酸盐在30毫克L-1显著改善光合作用色素度和水果产量在盐应激下.
- 的应用有效地减少了暴露于盐分的草植物中的氧化应激标志物.
- 与PLSR相结合的Vis-NIR光谱学显示在盐水条件下对叶子Si含量具有中等的预测能力 (R2 = 0.453).
结论:
- 在叶子上应用特定的源,即稳定酸和酸盐,可以有效地减轻盐度压力对草生产的不利影响.
- 肥是一种有前途的策略,可以提高草对盐度的抵抗力,从而提高作物生产率.
- 像Vis-NIR光谱学这样的精密光谱工具提供了一种非破坏性的方法来监测压力下的植物中诱导的生理变化.
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