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采用扫描电子显微镜对部份常见小杂粮作物的７个品种（品系）的花粉形态进行了详细观察和描述。结果表明：同种作物不同品种（品系）之间花粉粒在形状、萌发器官及表面主纹饰等主要性状相同，而花粉粒的大小、表面的辅纹饰等细微性状各有差异。不同种作物花粉粒表面性状截然不同。由此可见，花粉形态主要是遗传因素所决定的性状。
Scanning electron microscopy (SEM) was used to observe and describe the pollen morphology of 7 varieties (lines) of some common small grains crops in detail. The results showed that the main characters of pollen grains in the same crop varieties (lines) were the same in shape, germination organs and surface ornamentation, while the pollen grain size and the surface ornamentation were different. Different crops pollen grain surface characteristics are very different. Thus, pollen morphology is mainly determined by genetic factors traits.