八种珍稀濒危植物引种试验

１９９２－１９９４年三年来，从内蒙、新疆和甘肃等省（区）的沙区地带引种来的８种珍稀濒危植物，现保存有性和无性繁殖苗近千株，大多已开花结实，经过对沙区８种珍稀濒危植物播种育苗研究认为：准噶尔无叶豆、矮沙冬青、银沙槐３种植物种皮坚硬吸水困难，播前须用浓硫酸处理后再经温水浸泡，才能吸水膨胀发芽；沙生柽柳、半日花、裸果木、绵刺、四合木等植物，种子质地松软，无需特殊处理均可干播发芽，播深适中均能取得较好出苗率。

Introduction of Eight Endangered or Rare Plant Species in Minqin Desert Area

Since 1992 we have successfully introduced 8 species of rare plants froln lnner Mongolia,Xinjiang and Gansu. Up to now,approximately 1, 000 seedlings have been raised,most of them have already bloosomed and born fruits. As the seeds of Erem ospartor mongoricum,Ammopiptantnus nanus and Ammodendron bifolium are hard,before sowing they must be treated by sulphric acid and then soaked in lukewarm water for certain time, which can make them suck up water moisture and swell,For these speciese,the seeding depth is 2.5-4.0cm.The seed shell of Tamarix takla-mkanensis,Helianthemum soongoricum,Gymnocarpos przewalskii,Potaninia mongolica and Tetraena mongolioca are soft, so no treatment is needed and just sow them at the depth of 5 cm.