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铅笔柏(Sabina virginiana Ant.)原产北美,适应性极强,目前我国许多省已有引种栽培。但由于种源稀少,种子发芽困难,出苗率低,扦插繁殖生根期长,苗木供不应求。为了解决种苗不足,笔者对肖县铅笔柏繁育场等地的种子育苗技术进行了调查,现介绍如下: 一、种子采集和制种我省肖县所里山现有9年生铅笔柏大树约36,000株,1980年已有少数单株开花结实。据1982年4月调查,开花单株数占总株数的70%以上,现每年采集球果200余斤。据观测铅笔柏
Sabina virginiana Ant. Native to North America, very adaptable, many of our province has introduced cultivation. However, due to sparse germination, seed germination difficulties, low emergence rate, cuttage rooting period, seedlings in short supply. In order to solve the shortage of seedlings, the author of Shaoxing Pencil cypresses and other places seed breeding techniques were investigated, are as follows: First, the seed collection and seed production Xiao County, Shanxi Province, the existing 9-year-old Pen Park 36,000 plants in 1980, a small number of single flowering firm. According to a survey conducted in April 1982, the number of flowering single plants accounted for more than 70% of the total number of plants, and more than 200 kg of cones were collected annually. It is observed pencil cypress