Effect of Nitrogen Concentration on Yield Traits and Protein Content and Protein Components Content of Wheat (Triticum aestivum) in Vitro Cultivation

The effects of different nitrogen content on yield traits,protein content and protein components content of spring wheat(Xinchun 11)were investigated by in vitro culture.The results indicated:nitrogen affect the wheat yield traits mainly through the grain rate per spike,especially the grain rate of 3+4 flowers,1000-kernel weight,the flowers number,and the length of joint;nitrogen affect the wheat quality traits mainly through the protein content and protein composition content.The content of protein and protein composition are increased with the nitrogen concentration,except albumins,and the sequence of the increased scope of protein composition are gladinsglobulinglutenins.The study also showed:the best possible nitrogen concentration which join quality and yield trait is 0.06%.