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烯喷雾减轻干旱对小麦的不良影响旗叶子功能

Huizhen Li^1,2, Yuan Liu¹, Bo Zhen³

¹Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China.

Plants (Basel, Switzerland)

|April 13, 2024

概括

外源性普罗林的应用通过改善叶子的保留水和抗氧化能力,在干旱压力下显著提高小麦产量. 这项研究强调了proline的作用.

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:

干旱压力是全球作物生产的主要制约因素.
外源性普罗林在干旱期间对玉米和大米等作物显示出好处.
它对小麦的影响,特别是叶子的水能力,不太清楚.

研究的目的:

在不同的干旱条件下,研究外源性普罗林对小麦旗叶的影响.
评估普罗林在改善水容量,抗氧化剂状态和产量的作用.
了解小麦对干旱和林处理的生理和解剖反应.

主要方法:

小麦植物遭受了两个干旱级别 (轻度:60%FC,严重:45%FC) 和三种proline度 (0,25,50mM).
测量包括叶子的解剖特征,持水能力,抗氧化酶活性,林含量,叶绿素含量和谷物产量.
包括一个没有压力和没有proline的对照组.

主要成果:

干旱压力降低了叶绿素,变形了叶脉,降低了谷物产量,同时增加了catalase和peroxidase活性和proline含量.
外源性普罗林改善了叶绿素含量,保持水分的能力,抗氧化酶活性和叶子组织结构.
林的应用 (25和50毫米) 增加了小麦产量2.8810.81% (轻度干旱) 和33.9052.88% (严重干旱).

结论:

外源性普罗林有效地减轻小麦的干旱压力.
氨酸增强了生理和解剖学特征,导致在干旱下提高了谷物产量.
持水能力和抗氧化剂防御是通过proline有益于干旱压力小麦的关键机制.

关键词:

解剖学特征解剖学特征解剖学特征抗氧化酶是一种抗氧化酶酶.农作物农作物农作物植物生长调节剂植物生长调节剂水资源短缺问题缺水问题

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