水杉是我国特有的孑遗珍贵树之一。自本世纪四十年代末发现以来,受到国内外林学界的广泛重视。近30年来,我国各地广为引种,事实证明,它是长江中下游及以南各省平原湖区造林及城镇绿化的好树种,但是种子缺乏,迄今仍没有良种可供利用,而无性系选育是实行良种化的快速高效途径。为 Metasequoia is one of the unique relics of our country. Since its discovery in the late 1940s, it has been widely valued by forestry scholars at home and abroad. In recent 30 years, our country has been widely introduced. Facts have proved that it is a good species for afforestation and urban afforestation in plains and lake areas in the middle and lower reaches of the Yangtze River and in the south of the Yangtze River. However, seed is scarce and no elite seeds are available yet, Implementation of the rapid and efficient breeding methods. for