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沙枣(Elaeagnus angustifolia L.)具有浓郁的香味,故又名七里香、桂香柳;果肉粉质,味甜可口;木材坚硬、材纹清晰,是极好的家俱及农具用材;适应性强,耐干旱,抗盐碱,是西北沙荒、盐碱地区的主要造林树种之一。为了给该树种的选育工作提供一些依据,我们于1981～1982年对沙枣大、小孢子、胚囊、胚及胚乳形成过程进行了初步观察。现将观察结果报告于后。
Elaeagnus angustifolia L. is rich in flavor and is also known as Qilixiang and Guixiangliu. Its flesh is silty and delicious, its wood is hard and its grain pattern is clear. It is an excellent furniture and farm implements material. Its adaptability and resistance Drought, salt and alkali resistance, is one of the main afforestation species in the northwestern sand shortage, saline-alkali regions. In order to provide some evidence for the breeding of this tree species, we conducted a preliminary observation on the formation process of large and small spores, embryo sac, embryo and endosperm of Saussurea japonica from 1981 to 1982. Now report the results reported later.