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用石蜡切片法，对普通小麦（Ｔｒｉｔｉｃｕｍ ａｅｓｔｉｖｕｍ Ｌ．）异源２ 号、中国春与球茎大麦（Ｈｏｒｄｅｕｍ ｂｕｌｂｏｓｕｍ Ｌ．）远缘杂交受精过程和早期胚胎发育进行了比较观察．实验表明，仅具１对Ｋｒ基因的异源２ 号和具３ 对Ｋｒ基因的中国春与球茎大麦杂交，其受精和胚胎发育存在着明显的差异．为小麦与球茎大麦远缘杂交提供了细胞胚胎学证据．
Paraffin section method was used to study the distant hybridization fertilization and early embryo development of Triticum aestivum L. allo-2 and Chinese spring and bulb barley (Hordeum bulbosum L.). Experiments show that only a pair of Kr gene heterologous 2 and 3 pairs of Kr gene Chinese spring and bulb barley hybridization, fertilization and embryonic development there is a clear difference. It provided the evidence of cytoembryology for distant hybridization between wheat and bulb barley.