在干旱和盐分压力下,三的形态生理反应和生长指数
Soheyla Mohammadi Alagoz1, Hashem Hadi2, Mahmoud Toorchi3
1Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran. so.mohammadi@urmia.ac.ir.
Scientific reports
|June 1, 2023
概括
干旱和盐度显著降低了三树的产量,特别是当它们在开花阶段结合在一起时. 叶子自由的普罗林和可溶性糖可以表明对这些非生物压力的耐受性.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 农作物科学 农作物科学
背景情况:
- 盐度和干旱等非生物压力对全球作物生产和粮食安全构成重大威胁.
- 三是一种重要的作物,但其生产率容易受到环境压力因素的影响.
研究的目的:
- 调查干旱和盐分压力的单个和联合影响,对三树的生长,形态和生理学.
- 为了确定特立卡力应激耐受性的关键现象学阶段和生理学指标.
主要方法:
- 一个3x4的因数实验进行了三种盐度水平 (0,50,100mM NaCl) 和四种干旱水平 (包括灌中断在头部,开花和核扩展).
- 评估的参数包括叶绿素含量,干物质,叶面积指数,相对含水量,谷物产量,可溶糖,素,胡卜素和电解质泄漏.
主要成果:
- 单个和组合应激都显著降低了叶绿素,干物质,叶面积指数,相对含水量和谷物产量.
- 在结合100mM NaCl和在开花阶段的干旱压力下观察到产量和生理参数的最严重减少.
- 叶子中的自由普罗林,可溶性糖和胡卜素含量在压力下增加,在结合严重的盐度和开花时的干旱下增加最多.
结论:
- 开花阶段是特立基菌对缺水最敏感的现象学阶段.
- 在严重的盐度条件下,离子应力占主导地位,而非透应力.
- 叶子自由的普罗林和可溶糖是可靠的生理指标,用于评估干旱和度耐受性.
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