追氮对夏玉米淀粉含量及其糊化特性的影响  

The Effects of Nitrogen Fertilize Topdressing on Starch Content and Starch Pasting Properties in Summer Maize(Zea mays L.)

作　　者：崔丽娜 李庆方[4] 董树亭 Cui Lina1,2 Li Qingfang3, Dong Shuting1(1.Agronomy College of Shandong Agrieuhural University ;State Key Laboratory of Crop BiologyI, Tai＇an 271018;2.Dezhou Agrieulture Bureau2, Dezhou 253000;3.Linyi Agrieuhure Bureau3, Dezhou 25300)

机构地区：[1]山东农业大学农学院 [2]作物生物学国家重点实验室,泰安271018 [3]山东德州市农业局,德州253000 [4]山东省临邑县农林局,德州253000

出　　处：《中国粮油学报》2018年第3期43-47,共5页Journal of the Chinese Cereals and Oils Association

摘　　要：以郑单958为材料,研究玉米随追氮量增加玉米籽粒淀粉含量、淀粉相关酶活性及其淀粉糊化特性的影响,研究结果表明玉米籽粒淀粉及直链淀粉含量随追氮量的增加先升高后略有下降;腺苷二磷酸葡萄糖焦磷酸化酶(ADPG-PPase)、尿苷二磷酸葡萄糖焦磷酸化酶(UDPG-PPase)及束缚态淀粉合成酶(GBSS)的活性随追氮量的增加先升高后降低。可溶性淀粉合成酶(SSS)的活性随追氮量的增加先降低后升高;随追氮量的增加淀粉的峰值黏度、低谷黏度、最终黏度及崩解值先升高后降低,峰值时间以及糊化温度先降低后升高。The maize of Zhengdan958 （Zea mays L. ） on starch content, starch related enzyme activities and starch was used for studying the effects of nitrogen application pasting properties in maize. The result showed that total starch content and amylose content increased firstly and then decreased with the applying nitrogen increased. ADPG -Ppase, UDPG- Ppase, GBSS increased firstly and then decreased with the applying nitrogen increased. SSS increased decreased firstly and then increased with the applying nitrogen increased. Peak viscosity, hot viscosity, final viscosity and break down increased firstly and then decreased with the applying nitrogen increased, peak time and paste temperature increased decreased firstly and then increased with the applying nitrogen increased.

关 键 词：玉米 氮肥 淀粉 糊化特性 

分 类 号：S513.048[农业科学—作物学]