under hypocotyls

• 下胚轴

under hypocotyls的用法和样例：

例句

1. Such seedlings are characterized by having elongated hypocotyls or epicotyls.
   这样的幼苗具有伸长的下胚轴或上胚轴的特征。
2. Rapid elongation of the hypocotyls after germination pushes the cotyledons above ground in plants showing epigeal germination.
   种子萌发后下胚轴迅速增长，将子叶顶出地面形成地上芽。