外源水杨酸对黄秋葵种子萌发及低温胁迫下幼苗生长的影响  

Effect of Salicylic Acid on Germination and Growth of Okra under Cold Stress

作　　者：理向阳[1] 刘晓静[2] 郭晓阳[1] 代丹丹[1] 胡颖[1] 张洋[1] 郭红霞[1] 

机构地区：[1]河南省农业科学院经济作物研究所,河南郑州450002 [2]安阳市农业局水产站,河南安阳455000

出　　处：《河南农业科学》2016年第5期126-129,共4页Journal of Henan Agricultural Sciences

基　　金：河南省农业科学院自主创新项目;河南省农业科学院科研发展专项资金项目(20148402)

摘　　要：以台湾五福黄秋葵种子为试材,研究了水杨酸(SA)对黄秋葵种子萌发以及对4℃低温胁迫下幼苗叶片生理指标的影响,以期为早春时期黄秋葵育苗提供理论依据。结果表明:低浓度(0.5、1.0 mmol/L)的SA浸种能提高黄秋葵种子发芽势和发芽率;1.5 mmol/L SA浸种降低种子的发芽势、发芽率;2.0 mmol/L SA处理严重抑制黄秋葵种子的萌发。与清水对照相比,低浓度的SA处理能使黄秋葵幼苗叶片中叶绿素a、b含量和叶绿素总量增加,过氧化物酶活性以及脯氨酸积累量升高,过氧化氢酶活性和丙二醛含量降低。其中以1.0 mmol/L的SA浸种效果最好。The influence of salicylic acid（ SA） on seed germination and physiological indexes of Taiwan Wufu okra（ Abelmoschus moschatus） under cold stress was studied,so as to provide theoretical basis for okra seedling culture at early spring. The result showed that 0. 5 mmol / L,1. 0 mmol / L SA could enhance the germination force and germination percentage of the okra seeds; 1. 5 mmol / L SA could decrease the germination force and germination percentage; 2. 0 mmol / L SA could seriously inhibit the seed germination of okra. Compared with the control with water,low concentrations of SA could improve the contents of chlorophyll a,chlorophyll b and the total chlorophyll,the activity of POD and the contents of proline of the okra seedlings,decrease the CAT activity and the content of MDA. The 1. 0 mmol / L SA had the best effect.

关 键 词：水杨酸 黄秋葵 幼苗生长 低温胁迫 

分 类 号：S649[农业科学—蔬菜学]