日本五针松(Pinus parviflora Sieb. et Zucc.)是珍贵的园林观赏树种,原产日本,在原产地高达30米,直径1米。我国引种已多年,一直是用嫁接方法繁殖,对其种子的特性及播种育苗方法尚缺乏了解。1985年我省从日本引进了一批种子,我们对这批种子的萌发形态进行了观察,并采用几种方法进行种子催芽和芽苗移栽育苗,现将试验结果报道如下。 一、种子形态 日本五针松属松属、单维管束亚属、五针松组。本组内有20多种松树,即使日本五针松也有多种变种。但其种子的形态,组内各种 Pinus parviflora Sieb. Et Zucc. Is a valuable ornamental tree species, native to Japan, in the origin of up to 30 meters, 1 meter in diameter. China has been introduced for many years, has been the method of reproduction with grafting, the characteristics of their seeds and sowing seedlings method is still lack of understanding. In 1985, the province introduced a batch of seeds from Japan. We observed the germination patterns of these seeds and used several methods to seed germination and transplanting seedlings. The test results are reported as follows. First, the seed morphology Japanese Pinus pinaster, single-tube bundle subgenus, five needle pine group. There are more than 20 species of pine in this group, even though there are many varieties of Japanese pine. But its seed morphology, a variety of groups