银杉(Cathaya argyropiyua)是我国继水杉后在50年代发现的又一古代残遗的珍贵树种,它在学术研究以及生产应用上都具有很重要的价值。但由于银杉自然分布植物稀少、种源濒临绝迹。因而急待探索出加速繁殖银杉的有效方法、扩大人工栽培范围。据报道:银杉播种育苗,因种源极缺、且种子空瘪率很高、难以繁殖大量苗木。采用扦插繁殖,亦然缺乏材料,且生根困难,限制了其发展。 Cathaya argyropiyua is a precious species of our country that was found in the 1950s after Metasequoia glyptostroboides. It has great value in academic research and production and application. However, due to the natural distribution of silver fir sparse plants, provenance is on the verge of extinction. So urgent to explore an effective way to accelerate the propagation of silver fir, expand the scope of artificial cultivation. It is reported: silver fir sowing seedlings, due to the lack of sources, and the seed empty flat rate is very high, it is difficult to breed a large number of seedlings. The use of cutting propagation, but also the lack of materials, and rooting difficulties, limiting its development.