A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn.
不定胚与合子胚之间不能划分出明显的界限.
辞典例句
Its functions are like a zygotic embryo in giving rise to a new plant.
其功能象能产生一株新植物的合子胚.
辞典例句
The proembryo from zygotic cell divisions may be divided into three parts: proper , hypoblast and suspensor.
玉米合子细胞分裂形成的原胚分为胚柄 、 基与胚体三部分.
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The nucellar embryo suspensor , its development passed through the similar stages of the zygotic embryo.
珠心胚发育经历与合子胚相同的发育阶段.
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