There were genotypic differences in N content with Yangmei 5 having higher N content at booting in leaf and stem, but the results were opposite at maturity.

• 植株氮含量在基因型之间差异显著，孕穗期叶片和茎杆扬麦5号显著高于浙农大941，而成熟期则以浙农大941较高。