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祁县国营林场顶山庙作业区,于1971年开始进行落叶松引种试验,在引种育亩过程中,采用锯末复盖和锯末拌种催芽,收到了一定效果,现将这种方法介绍如下。一、锯末拌种催芽:在播种前5～7天,将种子用两开兑一凉的温水浸泡一昼夜,捞出后用体积约2倍于种子的湿润锯末进行搅拌,为保持一定湿度和上下湿度均匀,每天需要翻动1～2次和注意洒水,经过5～7天种子露出白尖时即可播种。通过对比试验,锯末催芽的种子发芽率为67%,沙藏催芽的为59%,温水浸种的为48%,锯末催芽的发芽率分别比沙藏和温水浸种的发芽率提高8%和19%。
In Qishan County State Forest Farm Dingshanmiao operating area, the introduction test of larch began in 1971. During the process of introducing and planting mu, using sawdust cover and sawdust seed dressing to promote germination, we have introduced this method as follows. First, the sawdust seed dressing: 5 to 7 days before sowing, the seeds with two open against a cool warm water soak for a day and night, remove with a volume of about 2 times the seeds of the wet sawdust stirring, in order to maintain a certain humidity and up and down Humidity evenly, you need to flip 1 to 2 times a day and pay attention to watering, after 5 to 7 days when the seed is white tip can be sown. The germination rate of sawdust germination was 67%, that of sand seed germination was 59%, and that of warm soaking was 48%. The germination rate of sawdust germination was 8% and 19% higher than that of sand and warm soaking, respectively.