氮素用量对春玉米淀粉合成关键酶的影响  

Effects of Nitrogen Application on Key Enzyme in Composing Starch on Spring Maize

作　　者：王强[1] 赵宏伟[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030

出　　处：《玉米科学》2008年第5期83-86,共4页Journal of Maize Sciences

基　　金：黑龙江省教育厅科学技术研究项目(10531023)

摘　　要：以本育9、平安18、丰禾10、四单19为试验材料,研究氮素用量对春玉米淀粉合成关键酶的影响。结果表明,ADPG焦磷酸化酶和淀粉分支酶(Q酶)是春玉米淀粉合成的关键酶;施纯氮200 kg/hm2处理是提高春玉米ADPG焦磷酸化酶活性和提高本育9、平安18、四单19 Q酶活性的最佳处理;施纯氮100 kg/hm2处理是提高丰禾10Q酶活性的最佳处理。This experiment utilized Benyu9, Pingan18, Fenghe10, Sidan19 as materials, studied effects of nitrogen application on key enzyme in composing starch on spring maize. The results showed that ADPG-PPase and Q enzyme were the key enzyme in composing starch. N 200 kg/ha was the best disposal to Q enzyme activity of Benyu9, Pingan18, Sidan19, N 100 kg/hawas the best disposal to Q enzyme activity of Fenghe10.

关 键 词：春玉米 淀粉 ADPG焦磷酸化酶 淀粉分支酶(Q酶) 

分 类 号：S513.01[农业科学—作物学]