叶面喷硒对小麦抗氧化性能及籽粒硒含量的影响  

Effect of Spraying Selenium to the Leaves on the Performance of Antioxidation of Wheat and Grain Selenium Content

作　　者：宋家永[1] 王海红[1] 朱喜霞[2] 贾宏昉[1] 席洪亮[1] 孙建利[1] 尹钧[1] 张万业 

机构地区：[1]河南农业大学国家小麦工程技术研究中心,河南郑州450002 [2]安阳县农业局,河南安阳455000 [3]内蒙古恒绿农业新技术开发研究所,内蒙古杭锦015400

出　　处：《麦类作物学报》2006年第6期178-181,共4页Journal of Triticeae Crops

基　　金：国家粮食丰产科技工程河南课题(2004BA520A06);河南省科技攻关项目(052409007)

摘　　要：为探讨大田条件下硒对小麦抗氧化性能及籽粒中硒含量的影响,以亚硒酸钠(Na2SeO3)和富硒增产素为硒源,从硒的用量、形态和喷施时间三个方面进行了分析。结果表明,喷硒后谷胱甘肽过氧化物酶(GSH-Px)活性显著提高;小麦根系活力和旗叶游离脯氨酸含量明显高于对照;小麦籽粒硒含量最高为对照的3.3倍,各处理均表现出增产趋势,最高增产5.1%。富硒增产素喷施效果优于亚硒酸钠,孕穗期喷施比灌浆期喷施效果好。In order to understand the influence of the selenium to the flag leaves of wheat on the Antioxidation systems and the yeild under the field condition, the effects of the form and treat-time applying Na2SeO3 and the agent of rich selenium were analyzed. The results showed that GSH-Px Activity of wheat flag leaves kept relatively high; the root activity and content of free proline in flag leaves of wheat enhanced; the content of selenium in wheat grain are as 3.3 times as in the contrast wheat grains. All the treatments showed the tendency of increasing yield with maximum of 5.1%. The agent of rich selenium is better than Na2SeO3, and the effect at booting stage is better than at grain filling stage.

关 键 词：小麦 硒 谷胱甘肽过氧化物酶 

分 类 号：S512.1[农业科学—作物学] S311