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Effects of Salt Stress on Seed Germination and Embryo Growth of Oxytropis coerulea

文献类型： 外文期刊

作者： Qin, Yuao 1 ; Ma, Ruixin 2 ; Wang, Zixuan 1 ; Liu, Zhen 3 ; Chen, Liuqian 1 ; Han, Qiqi 1 ; Liu, Zhongkuan 4 ; Liu, Guixia 1 ;

作者机构： 1.Hebei Univ, Coll Life Sci, Engn Res Ctr Ecol Safety & Conservat Beijing Tianj, MOE,Key Lab Microbial Divers Res & Applicat Hebei, Baoding 071002, Peoples R China

2.Weixian 6 Primary Sch, Handan 054799, Peoples R China

3.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China

4.Hebei Acad Agr & Forestry Sci, Inst Agroresources & Environm, Shijiazhuang 050051, Peoples R China

关键词： Antioxidant enzyme activity; Embryo growth; Germination rate; Oxytropis coerulea; Salt tolerance

期刊名称：LEGUME RESEARCH （ 影响因子：0.8； 五年影响因子：0.8 ）

ISSN： 0250-5371

年卷期： 2025 年 48 卷 1 期

页码：

收录情况： SCI

摘要： Background: Oxytropis coerulea is considered to be an exceptional forage. The salinization of soil is a prevalent ecological issue worldwide. In order to study the effects of saline solution on seed germination and embryo growth of O. coerulea. Methods: An experiment was carried out using the culture dish filter paper method. Three salt stresses, namely, Na2CO3 NaCl and double salt were set, each of which was set to 0%, 0.3%, 0.6% and 0.9% concentration. Result: The results indicated that as the concentration of salt increased, there was a decrease in the germination rate, germination index and embryo growth. The activities of SOD, POD and CAT, as well as soluble protein content, initially increased and then decreased with increasing salt stress. The toxic effects of the three salts ranged from strong to weak as Na2CO3> double salt > NaCl. The salt resistance indexes of 0.3% Na2CO3, NaCl and double salt were 53.87, 57.00 and 38.73, respectively and the salt resistance index of 0.6% NaCl was 50.21, indicating a high salt-tolerant degree. It showed certain resistance to 0.3% Na2CO3, 0.6% NaCl and 0.3% double salt. In short, the various soluble mechanisms of O. coerulea in different stages of salt stress and different salt stress levels have different reaction mechanisms, which reflect the salt stress of O. coerulea seeds. O. coerulea seeds can be planted in a suitable concentration of saline-alkali land, which can utilize the feed value and medicinal value of O. coerulea to improve economic benefits and utilize saline soil to improve the ecological environment.

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