^(60)Co-γ射线辐射对NaCl胁迫下海滨锦葵种子萌发的影响  

Effect of ^(60)Co-γ Radiation on Seeds Germination of Kosteletzkya virginica L. under NaCl Stress

作　　者：赵东晓[1] 董亚茹[1] 杜建勋[1] 顾寅钰[1] 陈传杰[1] 孙景诗[1] 

机构地区：[1]山东省蚕业研究所,山东烟台264002

出　　处：《山西农业科学》2017年第10期1602-1605,共4页Journal of Shanxi Agricultural Sciences

基　　金：山东省农业科学院农业科技创新工程项目(CXGC2016B10);山东省农业重大应用技术创新项目(201706)

摘　　要：为了探寻有助于提升海滨锦葵种子耐盐性能的辐射剂量,为发展其在盐碱地中的种植提供建议,应用辐射诱变技术,研究经不同剂量的^(60)Co-γ射线辐射处理的海滨锦葵种子在不同浓度NaCl胁迫条件下的萌发特性,比较不同处理下的种子在NaCl胁迫下的发芽率、发芽势和发芽指数。结果表明,在未经NaCl胁迫下,辐照处理可以提高海滨锦葵种子发芽率,但在NaCl胁迫下,辐照处理降低了种子的发芽率;适宜剂量的辐射可以提高盐胁迫下海滨锦葵种子的发芽势和发芽指数,即提高海滨锦葵种子在盐胁迫条件下的发芽速度和整齐度。The purpose of the study was to select the optimal radiation dosage, which was important to improve the salt resistance of Kosteletzkya virginica L. seed, and to provide guidance for the development of artificial cultivation of licorice in saline-alkali desert soil.Radiation induced mutation technology was used to investigate the germination pattern of Kosteletzkya virginica L. seed under different concentration of NaCl stress after^（60）Co-γ radiation with different doses. The seed germination rate, germination potential and germination index under different concentration of NaCl stress were compared. The results showed that under the condition of no NaCl stress, the germination rate of the Kosteletzkya virginica L. seeds was improved by irradiation, but under NaCl stress, the germination rate of seeds was decreased by irradiation. The appropriate radiation dose could increase the germination potential and germination index and improve the germination speed and uniformity of the Kosteletzkya virginica L. seeds under salt stress.

关 键 词：海滨锦葵 60CO-Γ辐射 盐胁迫 种子萌发 

分 类 号：Q945.78[生物学—植物学]