simple perforation plate

It shows the tendency of transformation from scalariform perforation plate to simple perforation plate.

显示了导管从原始梯形穿孔板到单穿孔板的进化过程。

the study of the stem's secondary xylem of rhus chinensis mill reveals that perforation plate is simple perforation plate.

对盐肤木茎进行木材解剖学研究，发现其导管分子穿孔板为单穿孔板。

The simple perforation plate was comparatively universal and wide-spread,( 2) The scalariform perforation plate was demonstrated in 37 species of 26 genera of Ranunculaceae.

梯状穿孔板，发现有26属37种植物的导管分子具有此类穿孔板。

Isolating the stem secondary xylem of the seedling, the results revealed that its cellular form have wood fiber, septate wood fiber and vessel element, there are two types of perforation plate, simple perforation plate and scalariform perforation plate.

离析实生苗茎次生木质部，发现其细胞组成有木纤维、分隔木纤维和导管分子，导管分子穿孔板有单穿孔板和梯状穿孔板。