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作 者 ：丁惠宾  贺平鸽  王耀芝  周宽基

期 刊 ：西北植物学报 1994年 6期

关键词：双苗春小麦；胚；胚乳；异常；

Keywords:spring wheat of twins seedling, embryo, endosperm, abnormality,

摘 要 ：用石蜡切片法观察了双苗春小麦胚和胚乳的发育；发现有许多异常现象。主要表现如下：１．双胚，发生频率约６％；２．未受精形成孤雌胚；３．胚乳中具无核细胞质泡；４．原胚时期胚囊不同程度变形、缩小。

Abstract:The development processes ofembryo and endosperm in spring wheat of twins seedling wereobserved by using paraffin section method and intact dissection.Many abnormalities were ap-peared.The results were as follows:1.twins embryo,the frequency is about 6 pe

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