利用石蜡切片技术观察了埃及白睡莲的大、小孢子的发生，雌、雄配子体的发育，受精作用以及胚和胚乳的发育。
The megasporogenesis, microsporogenesis, female and male gametophyte development, development of embryo and endosperm were observed by using paraffin wax.
沙田柚雌雄配子体发育进程有明显差异，小孢子与雄配子体发生较早，持续时间较长；
There is an obvious difference in the developing process of female and male gametophyte.
在凹叶厚朴大、小孢子发生和雌、雄配子体发育过程中存在部分败育现象。
The megasporogenesis and microsporogenesis and the development of their female and male gametophyte are partially abnormal.
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