胡杨(Populus Diversifolia、Schrenk)又名水桐树、胡桐、陶来杨。它抗旱、耐盐、耐水湿、抗沙埋,是荒漠沙地和盐碱地造林较为理想的乔木树种。但是,在人工有性繁殖过程中,胡杨种子籽粒细小,种皮甚薄,极易丧失发芽力。如用普通贮存法,湿度大、温度高,用不了两天的时间,就完全丧失生命力,既不利于长途运输,又不易贮藏。胡杨种子成熟于七、八月间,时值盛夏,采集后即时播种,夏季保苗不易。既使成活,当年也只有五、六十天的生长期,苗木生长量极少,对越冬不利。保存下来的苗木也必 Populus Diversifolia (Schrenk), also known as watery trees, albino, pottery Yang. It is drought-resistant, salt-tolerant, water-wet, anti-sand buried, desert sand and saline-alkali land afforestation ideal tree species. However, Populus euphratica seed seeds are small and seed coat is very thin in the process of artificial reproduction, which can easily lose germination. Such as the use of ordinary storage method, humidity, high temperature, can not take two days, it completely lost its vitality, neither conducive to long-distance transport, but also not easy storage. Populus seeds mature in July and August, when the value of summer, sowing immediately after the acquisition, summer seedling is not easy. Even if alive, then only five or sixty days of growth, seedling growth is very small, negative wintering. Saved seedlings will also be