硫肥对小麦蛋白质组分及产量的影响

Sulphur Effect on Protein Components and Grain Yield of Wheat

试验在高肥力而硫素极缺的土壤上进行了试验,在施用常规氮磷钾肥料的基础上,比较不同小麦品种施硫肥与不施硫肥对小麦蛋白质组分及产量的影响。结果表明:在常规肥料措施下增施硫肥,提高了小麦营养体及籽粒中的含氮量,显著提高了籽粒中醇溶蛋白及总蛋白含量,而且不同蛋白质含量的小麦对硫肥的反应存在差异.施用硫肥极显著降低了千粒重和容重,产量也有所下降,但未达显著水平。

Based on the experiment in a plot of high soil fertility but low sulphur content with conventional fertilizer treatments （ nitrogen, phosphate and potassium fertilizer）, effect of sulphur on the protein quality and grain yield of the wheat cuhivars with different protein contents were studied. A comparison was made between the grain protein content and grain yield with or without sulphur. The results indicated that the conventional fertilizer treatment with sulphur increased the nitrogen content in the wheat organs and kernel, and prolamin content and total protein content in kernel significandy. However, the wheat cultivars with different protein contents showed different reactions to sulphur fertilizer. The sulphur treatment significantly decreased the weight of 1000 grain kernels, but the decrease in grain yield did not reach a significant level.