~(60)Co-γ辐照对NaCl胁迫下藜麦种子萌发的影响
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摘要
采用不同剂量(0～500 Gy)的~(60)Co-γ射线辐照藜麦种子,研究经不同剂量射线辐射处理的藜麦种子在不同浓度NaCl(0～400 mmol/L)胁迫下种子的萌发特性,以期筛选出能够提高藜麦种子耐盐性的最佳辐射剂量。结果表明:随着盐浓度的升高,种子发芽率、发芽势和发芽指数呈逐渐下降趋势,高盐环境下下降较为显著;不同剂量的~(60)Co-γ辐照处理对种子萌发的影响因盐浓度的不同而存在差异,即0～200 mmol/L NaCl条件下,种子发芽率及发芽时间随着辐照剂量的增加呈逐渐降低趋势,而300、400 mmol/L NaCl条件下,种子发芽率随着辐照剂量的增加呈先升高后降低趋势,300 Gy是促进高盐环境下种子萌发的最佳辐照剂量。
The effects of ~(60)Co-γ irradiation with different doses(0 ～500 Gy) on the germination rate, germination potential and germination index of quinoa seeds under NaCl(0～400 mmol/L) stress were studied in order to select the best irradiation dosage for improving salt tolerance of quinoa seeds. The results showed that with the increase of salt concentration, the germination rate, germination potential and germination index of seeds decreased gradually. The effect of ~(60)Co-γ irradiation with different doses on seed germination was varied with the different salt concentration. Under the condition of 0～200 mmol/L NaCl, the seed germination rate and germination time decreased gradually with the increase of irradiation dose, while the germination rate of seeds increased firstly and then decreased with the increase of irradiation dose under 300～400 mmol/L NaCl. In conclusion,300 Gy was the best irradiation dose to promote seed germination in high salinity environment.
The effects of ~(60)Co-γ irradiation with different doses(0 ～500 Gy) on the germination rate, germination potential and germination index of quinoa seeds under NaCl(0～400 mmol/L) stress were studied in order to select the best irradiation dosage for improving salt tolerance of quinoa seeds. The results showed that with the increase of salt concentration, the germination rate, germination potential and germination index of seeds decreased gradually. The effect of ~(60)Co-γ irradiation with different doses on seed germination was varied with the different salt concentration. Under the condition of 0～200 mmol/L NaCl, the seed germination rate and germination time decreased gradually with the increase of irradiation dose, while the germination rate of seeds increased firstly and then decreased with the increase of irradiation dose under 300～400 mmol/L NaCl. In conclusion,300 Gy was the best irradiation dose to promote seed germination in high salinity environment.
引文
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[15] 杨宏伟,刘文瑜,沈宝云,等. NaCl胁迫对藜麦种子萌发和幼苗生理特性的影响[J]. 草业学报,2017,26(8):146-153.
[16] 王文恩,包满珠,张俊卫. 60Co-γ射线对日本结缕草干种子的辐射效应研究[J]. 草业科学,2009,26(5):155-160.
[17] 吴茂力,刘勇强,张子龙. 60Co-γ 射线辐照对水稻陈种子活力复苏的影响[J]. 西南农业学报,2010,23(4):1013-1016.
[18] 霍雅馨,王娜,张吉宇,等. 3 种诱变因子对箭筈豌豆种子萌发的影响[J]. 草业科学,2014,31(3):438-445.
[19] 朱宗文,查丁石,朱为民,等. 60Co-γ射线辐射对番茄种子萌发及早期幼苗生长的影响[J].种子,2010,29(8):15-18,22.
[2] Wright K H,Pike O A,Fairbanks D J,et al. Composition of Atriplex hortensis,sweet and bitter Chenopodium quinoa seeds[J].Journal of Food Science,2002,67(4):1383-1385.
[3] Fuentes F,Bhargava A.Morphological analysis of quinoa germplasm grown under lowland desert conditions[J]. Journal of Agronomy and Crop Science,2011,197(2):124-134.
[4] Stikic R,Glamoclija D,Demin M,et al. Agronomical and nutritional evaluation of quinoa seeds (Chenopodium quinoa Willd.) as an ingredient in bread formulations[J].Journal of Cereal Science,2012,55 (2):132-138.
[5] Yao Y,Yang X S,Shi Z X,et al.Anti-inflammatory activity of saponins from quinoa (Chenopodium quinoa Willd.) seeds in lipopolysaccharide-stimulated RAW 264.7 macrophages cells[J]. Journal of Food Science,2014,79(5):1018-1023.
[6] Jacobsen S-E,Monteros C,Corcuera L J,et al.Frost resistance mechanisms in quinoa (Chenopodium quinoa Willd.)[J]. European Journal of Agronomy,2007,26(4):471-475.
[7] Jacobsen S-E,Mujica A,Jensen C R. The resistance of quinoa(Chenopodium quinoa Willd.) to adverse abiotic factors[J]. Food Rev.Int.,2003,19( 1/2): 99-109.
[8] 韩亚楠,吴琼,高睿,等. 60Co-γ辐照对Na2SO4胁迫下乌拉尔甘草种子发芽特性的影响[J].草业科学,2015,32(3):421-426.
[9] 赵东晓,董亚茹,杜建勋,等. 60Co-γ射线辐射对NaCl胁迫下海滨锦葵种子萌发的影响[J]. 山西农业科学,2017,45(10):1602-1605.
[10] 高睿,韩亚楠,张志政,等. 60Co-γ辐照种子对Na2SO4盐胁迫下乌拉尔甘草幼苗生长和生理特性的影响[J]. 种子,2017,36(10):25-30.
[11] Khan S S,Shelth K H. Effects of different levels of salinity on seeds germination and growth of Capsicum annuum L [J]. Blologia,1976,22:15-16.
[12] 王磊,严成,魏岩,等. 温度、盐分和储藏时间对多花柽柳种子萌发的影响[J].干旱区研究,2008,25(6):797-801.
[13] 袁飞敏,权有娟,陈志国. 不同钠盐胁迫对藜麦种子萌发的影响[J]. 干旱区资源与环境,2018,32(11):183-187.
[14] 修妤,梁晓艳,石瑞常,等. 混合盐碱胁迫对藜麦萌发期的影响[J]. 山东农业科学,2018,50(9):51-55.
[15] 杨宏伟,刘文瑜,沈宝云,等. NaCl胁迫对藜麦种子萌发和幼苗生理特性的影响[J]. 草业学报,2017,26(8):146-153.
[16] 王文恩,包满珠,张俊卫. 60Co-γ射线对日本结缕草干种子的辐射效应研究[J]. 草业科学,2009,26(5):155-160.
[17] 吴茂力,刘勇强,张子龙. 60Co-γ 射线辐照对水稻陈种子活力复苏的影响[J]. 西南农业学报,2010,23(4):1013-1016.
[18] 霍雅馨,王娜,张吉宇,等. 3 种诱变因子对箭筈豌豆种子萌发的影响[J]. 草业科学,2014,31(3):438-445.
[19] 朱宗文,查丁石,朱为民,等. 60Co-γ射线辐射对番茄种子萌发及早期幼苗生长的影响[J].种子,2010,29(8):15-18,22.