The development characters of small-nutted longan embryo were studied by paraffin method.

摘要采用石蜡切片法研究小核龙眼胚胎发育的特点。

A paraffin method and a whole ovary stain clearing techique were used to study pseudogamy in Kentucky Bluegrass (Poa pratenesis L.).

本文运用石蜡切片法、整体透明法研究了草地早熟禾的假受精现象。