Seed soaking with salicylic acid improves alfalfa (Medicago sativa L.) germination by involving the antioxidation system

IF 2.4 4区生物学 Q2 PLANT SCIENCES Acta Physiologiae Plantarum Pub Date : 2023-09-29 DOI:10.1007/s11738-023-03600-0

Nan Xu, Xin Sui, Zhao Chen, JunPeng Niu, ZhiPeng Guo, QuanZhen Wang

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Abstract

Cultivation of alfalfa (Medicago sativa L.), one of the most extensive forages around the world, is important for animal feeding and ecological conservation in Northwest China. Seed soaking with salicylic acid (SA) facilitates germination and improves morphological and physiological traits. Thus, it is necessary to investigate the effect of SA on alfalfa seed germination, as it may be beneficial for seedling establishment and field production. In this study, the influence of SA at different concentrations (C: 0, 0.4, 0.8, and 1.2 mM) and seed soaking times (ST: 8, 16, 24, and 32 h) on alfalfa cultivars (CV: Eureka + , WL525HQ, Central, Kehan) was investigated using an orthogonal experimental design. The results showed that the effect was dependent on C, CV, and ST. In addition, SA enhanced seed germination by improving seed vigor, reducing lipid peroxidation, promoting osmotic regulation, and enhancing antioxidant levels. More importantly, model analysis revealed that 0.77 mM SA and 25.5 h ST were the optimal seed soaking conditions.

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水杨酸浸种通过参与抗氧化系统提高了苜蓿的发芽

紫花苜蓿（Medicago sativa L.）是世界上最广泛的牧草之一，在西北地区的动物饲养和生态保护中具有重要意义。水杨酸浸种有利于种子发芽，改善种子的形态和生理特性。因此，有必要研究SA对苜蓿种子发芽的影响，因为它可能有利于幼苗的建立和田间生产。在本研究中，SA在不同浓度（C:0、0.4、0.8和1.2mM）和浸种时间（ST:8、16、24和32h）下对苜蓿品种（CV:Eureka + , WL525HQ，Central，Kehan）。结果表明，SA的作用依赖于C、CV和ST。此外，SA通过提高种子活力、减少脂质过氧化、促进渗透调节和提高抗氧化水平来促进种子发芽。更重要的是，模型分析表明，0.77mM SA和25.5h ST是最佳的种子浸泡条件。

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来源期刊

Acta Physiologiae Plantarum 生物-植物科学

CiteScore

5.10

自引率

3.80%

发文量

125

审稿时长

3.1 months

期刊介绍： Acta Physiologiae Plantarum is an international journal established in 1978 that publishes peer-reviewed articles on all aspects of plant physiology. The coverage ranges across this research field at various levels of biological organization, from relevant aspects in molecular and cell biology to biochemistry. The coverage is global in scope, offering articles of interest from experts around the world. The range of topics includes measuring effects of environmental pollution on crop species; analysis of genomic organization; effects of drought and climatic conditions on plants; studies of photosynthesis in ornamental plants, and more.