水分处理对不同专用小麦旗叶和籽粒GS活性和产量的影响

摘要：以中筋小麦豫麦49和弱筋小麦豫麦50为材料，采用盆栽方法研究了40%FC、60%FC和80%FC对旗叶和籽粒中谷氨酰胺合成酶（GS）籽粒产量的影响。结果表明：旗叶中GS活性较籽粒中GS活性高，不同水分处理下豫麦49叶片在籽粒形成和灌浆盛期GS活性表现为60%FC>80%FC>40%FC，其它时期表现为80%FC下最高，40%FC最低，其籽粒和豫麦50叶片和籽粒GS活性均以80%FC下最高。两个品种的产量以80%FC最高，40%FC最低，60%FC居中。且旗叶和籽粒GS活性在籽粒灌浆盛期与产量都达到了极显著水平。

Effect of water control on Glutamine Synthetase(GS) Activity of flag leaves and grain and Quality of Winter Wheat with Specialized End-uses

In order to understand the effects of 40% FC, 60% FC and 80% FC on Glutamine Synthetase （GS） activity of flag leaves and grain and quality of winter wheat with specialized end-uses, pot experiments were carried out. The results showed that GS activity in flag leaf was higher than in grain, the activity among three water treatments showed： In grain formation and filling, GS activity in flag leaves showed： 60% FC〉80%FC〉 40% FC, In other stage showed that： 80% FC〉60% FC〉40% FC with Yumai 49. The GS activity of grain of Yumai 49 and the leaves, grain of Yumai 50 showed： 80%FC〉60%FC〉40%. The highest grain yield in the 80% FC treatment and 40%FC had the lowest grain yield. There was a significant correlation between GS activity of flag leaves and grain and grain yield during the middle stage of grain filling.