种子原料调节玉米的生理和农学属性 (Zea mays L.) 在诱导聚乙烯糖醇透应激下
Hussain Ahmad Kakar1, Sami Ullah1, Wadood Shah2
1Department of Botany, University of Peshawar, Peshawar 25120, Pakistan.
ACS omega
|July 3, 2023
概括
种子初始化,特别是用奇托,可以提高玉米 (Zea mays L.) 对透应激的耐受性. 这种技术通过增强抗氧化剂系统,在干旱条件下改善了发芽和幼苗的生长.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 生物技术是生物技术.
背景情况:
- 干旱和透应激显著威胁到作物生产,特别是在种子发芽和苗木建立期间.
- 种子初始化是一种广泛采用的技术,用于减轻对作物的非生物压力影响.
- 了解玉米 (Zea mays L.) 对透应激的反应对于粮食安全至关重要.
研究的目的:
- 评估不同种子原料技术在聚乙烯糖醇 (PEG) 诱导的透应激下对玉米生理学和农业学的有效性.
- 评估使用奇多,水和热对不同级别的透应激水平下玉米品种的透采粉的影响.
- 为了研究在压力下玉米中植物反应的调节,氧化物含量和抗氧化酶.
主要方法:
- 两种品种的玉米种子 (Zea mays L.) 经过了透化 (花素1-2%),水化 (蒸水) 和热化 (4°C).
- 原始种子被暴露在聚乙烯糖醇 (PEG-4000) 诱导的透应激下,其压力在 -0.2 和 -0.4 MPa.
- 分析了生理和农学参数,包括发芽,苗木生长,光合作用颜料,素含量和抗氧化酶活动.
主要成果:
- 透应激显著抑制了两种玉米品种的种子发芽和苗木生长.
- 在透压力下,基多的透启动显著提高了发芽率和种子活力指数.
- 化治疗调节了光合作用色素和proline水平,同时显著改善了抗氧化酶活动.
结论:
- 透应激对玉米生长和生理属性产生负面影响.
- 种子原料,特别是用奇托,有效地提高了玉米 (Zea mays L.) 对PEG诱导的透应激的耐受性.
- 化剂通过激活抗氧化酶系统并促进氧化物积累来改善压力影响.
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