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一、前言西洋参(Panax quinquefolium L.)系五加科人参属药用植物。西洋参种胚属于未成熟胚类型,在果熟时幼胚仅有0.3毫米左右,与人参相同,其种子具有长期休眠的特性,需要在自然或人工条件下继续发育。在自然条件下,从播种到出苗需经过二年以上的时间,比人参还长。关于人参种子发育特性的报导不少,但是有关西洋参这方面的研究未见过报导。因此,探讨西洋参种子的发育特性,满足种胚发育的因子,加速种胚的发育,无疑对西洋参在我国的扩大生产,争取高产具有现实意义。
I. Introduction Panax quinquefolium L. Department of Ginseng is a medicinal plant. The American ginseng embryo belongs to the immature embryo type. When ripening, the embryo is about 0.3 mm long. Similar to the ginseng, the seeds have the characteristics of long-term dormancy and need to continue to develop under natural or artificial conditions. Under natural conditions, more than two years from sowing to emergence need to be longer than ginseng. There are many reports on the developmental characteristics of ginseng seeds, but no studies on this aspect have been reported. Therefore, to explore the developmental characteristics of American ginseng seeds to meet the developmental factors of embryo and accelerate the development of embryo undoubtedly has the practical significance for American ginseng to expand production and strive for high yield.