在干旱压力下,热性碳对番茄根结构和代谢物 (ABA和) 的影响
Yuan Zhang1,2, Rifat-Un- Nisa3, Aansa Rukya Saleem3
1University Engineering Research Center of Watershed Protection and Green Development, Guangxi, College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
Frontiers in plant science
|October 9, 2025
概括
核桃生物炭通过改善根部发育和保持水分,显著提高番茄植物的生长和在干旱压力下的弹性. 这种可持续的修正案为提高干旱农业环境中的作物性能提供了有希望的解决方案.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 植物生理学 植物生理学
背景情况:
- 干旱压力对全球作物生产率和粮食安全构成重大威胁.
- 生物炭,特别是来自农业废弃物的生物炭,是改善植物抗旱能力的潜在土壤修改剂.
研究的目的:
- 评估核桃生物炭 (WS生物炭) 在不同干旱条件下对番茄植物的影响.
- 评估WS生物炭对番茄根结构,生物质和生理应激反应的影响.
主要方法:
- 温室试验使用遭受严重 (45% FC) 和中度 (75% FC) 干旱的番茄植物进行.
- 核桃生物炭以3%和5% (w/w) 的比率应用,以其物理化学性质为特征.
- 测量了植物生长参数,根系发育,生物质积累和与压力相关的荷尔蒙水平 (proline,ABA).
主要成果:
- 在严重干旱的情况下,WS生物炭的应用,特别是5%的应用,显著改善了植物的高度,叶子的生产,并减轻了生物质的减少.
- 生物炭治疗导致增强的根系,具有更长的初级根和增加的横向根密度.
- 在干旱条件下,WS生物炭降低了氧化应激标志物,显著降低了proline和abscisic acid (ABA) 的水平.
结论:
- 核桃生物炭通过改善根部发育,生物质和减轻生理压力,有效提高番茄干旱的抵御力.
- 增强土壤的保留水和修改的荷尔蒙信号可能是生物炭的好处背后的机制.
- WS生物炭显示出作为气候智能修正案的潜力,用于改善水资源有限的农业系统中的作物表现.
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