实验用滑走切片和常规石蜡切片法，对东北杏的营养器官解剖结构进行了观察。
Anatomical structure of vegetative organs of Armeniaca mandshurica was observed in detail by sliding and paraffin method.
对款冬营养器官解剖结构研究表明：根为典型的双子叶植物根的结构，初生木质部四原型；
The anatomical structure of Tussilago farfara L. vegetative organs showed that its structure of root is a typical structure of dicotyledonea. Its primary xylem is quadriarch ones.
据营养器官的形态结构判断，在海金沙胚胎发育中最早出现的营养器官是叶和根。
On the basis of the structure of vegetable organs, the first leaf and root are the earliest organs in the development of embryo.
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