Scanning Electron Microscope Observation of Three Species on Pollen Grain Morphology and Leaf Epiderm Shape in Gramineae Triticeae

The pollen grain morphology and leaf epiderm shape and microstructural of Rye（ Secale cereal ）, common wheat and Octoploid Trititrigia were observed with the scanning electron microscope（SEM）. The results revealed that there were great differences between pollen and leaf epiderm microcosmic morphology in three species. Such characteristics of Octoploid tnticalwere between those of common wheat and Rye. The morphology of pollen grain and leaf epiderm shape counld be used as an index for taxonomy for genera and species, and had somewhat scientif- ic references to identify new multiploid species created by chromosome engineering.

黑八

有些往事不会那么容易一笔勾销，比如对于黑八的记忆，多年以来，它一直在悄悄跟踪我，直到逼着我来写下这篇小说，至少有个交代。想至此处，黑八的样子也就从记忆深处翻了出来。