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樟子松(Pinus syrestris Linn Var mongolica Litv)原产地为黑龙江省大兴安岭北部山地。该树种对严寒气候的适应性和速生性,均优于当地的优势树种兴安落叶松。其在黑龙江各地和三北地区的引种造林也取得了良好结果,是有推广价值的优良树种。因此,研究环境因子对樟子松种子发芽的影响,在理论上和实践上都有重要的现实意义。为此,近几年我们进行了温度,湿度、裹丸、微量元素、生长刺激素对樟子松种子发芽影响的试验,并取得了一些有意义的结果,现初报如下:
Pinus sylvestris (Pinus syrestris Linn Var mongolica Litv) origin is the mountains of northern Daxinganling in Heilongjiang Province. The tree species adaptability to the cold climate and fast-growing, are superior to the local dominant tree larch. It has also achieved good results in afforestation and afforestation all over Heilongjiang and the Three North regions, and is an excellent tree species with popularization value. Therefore, studying the impact of environmental factors on the seed germination of Pinus sylvestris var. Mongolica has important practical and theoretical significance. For this reason, in recent years, we carried out experiments on the effects of temperature, humidity, pellets, trace elements and growth-stimulating hormones on the seed germination of Pinus sylvestris var. Mongolica and obtained some meaningful results.