综述澳美欧亚非30多国百多家有关研究表明,胚芽鞘长、细、硬、快的小麦品种耐深播、立苗好。从细胞能性角度阐述胚轴划分并澄清小麦胚芽鞘的错位描述及地中茎的混淆定义。图示双胚苗的第二胚芽鞘自然开裂。图释深播地中“拔节”现象值得春化学者关注。概述胚芽鞘遗传长度、生理长度及环境长度。提到小麦脂肪优质育种问题。对国内麦学界提出3个具有理论或实践意义的建议。 Summary Australia, the United States, Europe, Asia and Africa more than 30 countries a hundred studies show that the cole sheath long, thin, hard, fast wheat varieties resistant to deep sowing, Li Miao good. Describe the hypocotyl division and clarify the dislocation description of wheat coleoptile and the confusion definition of mid-stem from the cellularity perspective. The second cohosh sheath of the double embryo is shown to be naturally dehiscent. Emoticon broadcast deep “jointing” phenomenon is worth the attention of spring chemists. Overview of coleoptile genetic length, physiological length and environmental length. Mention the high-quality wheat fat breeding problem. Propose three suggestions of theoretical or practical significance to the domestic wheat community.