The embryo consists of two large fleshy cotyledons . 胚有两片大而肉质的子叶。
Cytyledons and future stalk called the hypocotyl elongate . 子叶和未来称为下胚轴的主轴延长。
The cotyledons of the mature embryo are either green, yellow or chalky yellow . 成熟胚的子叶是绿色,黄色或浅黄色。
The development of the soybean seedling is dependent on the food reserves stored in the cotyledons . 大豆幼苗的发育依靠子叶中所贮存的养分。
During development of the seedling, the hypocotyl forms the lower portion of the stem from the radicle up to the cotyledons . 在幼苗发育期间,下胚轴从胚根到子叶的茎的下部形成。