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普通小麦(Triticum aestivum)中的矮化变异通常可有三种类型。一类是草丛状矮化型(Cluster dwarf type)或简称丛矮型,一类是半矮化型(Semi-dwarf type)以及丛矮型(dwarf type)。后二者即当今育种工作中常用的矮源。丛矮型在生产上没有直接意义,但有人认为可能是后二类矮源的祖先。关于小麦的草丛状矮化株型,国外已作过不少研究,国内还未见有报导。我们在育种试验的杂交组合中发现,具正常株型和株高的扬麦1号和亚奎(yague,墨西哥)二品种不论正交和反交,其F_1植株全部表现为丛矮型植株(图1)。为此进行了进一步观察和研究。
There are usually three types of dwarfing variations in Triticum aestivum. One is the Cluster dwarf type or short bush type, and the other is the semi-dwarf type and dwarf type. The latter two are commonly used dwarf sources in today’s breeding work. The bush short type has no direct meaning in production, but some people think that it may be the ancestors of the latter two types of dwarf sources. On the grass-like dwarf plant type of wheat, many studies have been made abroad, there have been no reports. We found in the crossbreeding experiment that the F_1 plants of normal and plant type with the normal plant type and the plant height both in the orthogonal and the reciprocal crossed, figure 1). To this end for further observation and research.