氮肥对扬麦13籽粒GMP和蛋白质含量调节效应  

The Effect of Nitrogen on Grain GMP and Protein Content of Yangmai 13

作　　者：张容[1] 李春燕[2] 封超年[2] 何震天[1] 陈秀兰[1] 

机构地区：[1]江苏里下河地区农业科学研究所,江苏扬州225007 [2]扬州大学小麦研究所,江苏扬州225009

出　　处：《金陵科技学院学报》2011年第4期40-43,共4页Journal of Jinling Institute of Technology

基　　金：国家科技支撑计划课题(2009BAA24B05)

摘　　要：以"2+12"亚基组合小麦品种扬麦13为供试材料,研究了氮素营养对小麦籽粒高分子量谷蛋白亚基(HMW-GS)的积累量、谷蛋白大聚合体(GMP)含量及蛋白质含量的调节效应。结果表明:1)氮肥用量和运筹比例不改变小麦品种HMW-GS组成,但可以提高HMW-GS各位点的亚基积累量,提高亚基的总积累量,氮肥用量对小麦籽粒蛋白质的调控可能是通过亚基来发挥效应的;2)随着氮肥用量的增加,小麦籽粒蛋白质HMW-GS积累量、GMP含量、蛋白质及干湿面筋含量增加;3)不同氮肥运筹比例改变籽粒蛋白质HMW-GS积累量,随氮肥后移籽粒GMP含量、蛋白质含量增加。The effects of nitrogen on HMW-GS accumulation, GMP and protein contents of Yangmai 13 are studied with the subunits ＂2-1-12＂ as test materials. The results show that nitrogen amount and ratio do not change HMW-GS components but raise its accumulation, and the effect of nitrogen on grain protein and GMP contents of Yangmai 13 is through the accumu- lation of HMW-GS. With the increase of nitrogen amount, HMW-GS accumulation, GMP and protein contents, and dry-glutenin content increase correspondingly, but the increase amounts differ among varieties with different HMW-GS subunits.

关 键 词：小麦 氮肥 蛋白质 GMP 

分 类 号：S512.1[农业科学—作物学]