盐碱胁迫对不同品种三叶草抗性生理特性的影响  

Study on Effect of Saline and Alkaline Stress on Resistance Physiological Characteristics of Different Clovers

作　　者：桂枝[1] 高建明[1] 

机构地区：[1]天津农学院农学与资源环境学院,天津300384

出　　处：《天津农学院学报》2016年第1期1-4,共4页Journal of Tianjin Agricultural University

基　　金：国家自然科学基金(青年)项目"苜蓿PIP3基因的遗传研究变异;表达与功能"(31201840);国家科技支撑计划项目"优质多抗牧草新品种选育与良种繁育关键技术研究与示范"(2011BAD17B01);天津市高等学校创新团队培养计划项目"作物品质及抗逆性的遗传改良"(TD12-5017)

摘　　要：为了探讨不同三叶草品种在盐碱胁迫下苗期的生理特性,以7个三叶草品种为材料,研究了它们在不同浓度盐碱胁迫下的丙二醛含量、脯氨酸含量、SOD活性的变化规律。结果表明:不同品种在不同盐碱浓度下的丙二醛含量、游离脯氨酸含量和SOD活性存在较大差异;7个品种的丙二醛、脯氨酸、SOD指标在8 g/L时达到最大值。白三叶、红三叶和地三叶间的耐盐碱性存在差异,白三叶在苗期的耐盐碱性优于红三叶和地三叶,但这一结论是否适合全生育期还应作进一步的深入研究。In order to study the resistance physiological characteristics of different clovers in the saline and alkaline stress, 7 clover varieties were selected to study their resistant physical features by malonaldehyde content, proline content and SOD activity under the saline and alkaline stress. The results showed that significant difference could be found among 7 clover varieties when the 3 physical index were inspected under different concentration gradients of saline and alkaline, and the maximum of 3 index could be seen separately when the concentration was 8 g/L. In conclusion, the resistance to the saline and alkaline stress of white clover is better than red clover and subterranean clover, but the further research should be done to examine the resistance to saline and alkaline in the whole growth period.

关 键 词：三叶草 盐碱胁迫 丙二醛 脯氨酸 SOD 

分 类 号：Q945.78[生物学—植物学]