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缺水灌适用于两根根茎上接种的树,并用海水灌
Josefa M Navarro1, Vera Antolinos1, Pablo Botía1
1Equipo de Riego y Fisiología del Estrés, Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental, 30150 Murcia, Spain.
Plants (Basel, Switzerland)
|June 28, 2023
概括
在缺水灌下,的根茎选择对于用海水淡化 (DSW) 灌至关重要. 类巨 (CM) 显示出比酸 (SO) 更好的透调整,尽管离子积累更高.
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:
- 淡化海水 (DSW) 用于灌的使用在干旱地区越来越多.
- 的根茎影响了对DSW离子和水应激的耐受性.
研究的目的:
- 评估用DSW进行缺水灌对在两种不同容忍度的根茎上移植的树的影响:大 (CM) 和酸 (SO).
- 了解这些根茎对DSW和水压力的生理和生化反应.
主要方法:
- 在CM和SO植入的树被用DSW或蒸水灌.
- 140天后,树木接受了75天的全部灌 (FI) 或缺水灌 (DI).
- 评估了芽生长,离子积累 (Cl-, Na+, B),透调整,光合作用,叶绿素含量,口腔因子,光化学机械和抗氧化剂系统.
主要成果:
- 在DSW的DI下,CM植物积累了更高的Cl-和Na+,而SO积累了更多的B,导致芽生长减少.
- 通过Na +,Cl-和proline积累,CM植物实现了透调整;SO未能通过透调整.
- 两个根茎的光合作用减少与较低的叶绿素有关,在CM中出现额外的口腔问题和SO中的光化学变化.
- 酸 (SO) 与 (CM) 相比,表现出更强大的抗氧化系统.
结论:
- 根茎的选择显著影响在DSW灌和水资源短缺的情况下的表现.
- 与酸 (SO) 相比,大 (CM) 显示出更好的,尽管离子密集的,透调整.
- 了解这些不同的反应对于在缺水的干旱地区可持续种植果至关重要.
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