国槐种子较硬,种皮有细胞紧密组合的栅栏层,透水性差,干藏的种子在春季播种前必须进行处理。以前大多采用80℃温水浸种,结果发芽不齐。1987年春,张家口地区林科所王昶同志,根据多年实践经验,对国槐种子在播种前10天先把70℃左右的温水倒入桶内,按1斤种子2斤开水的比例,将种子倒入水中,边倒边搅拌,使种子均匀受热,到水不烫 Sophora japonica seeds are harder, with closely packed cells in the seed coat, poor water permeability, and dried seeds must be disposed of before sowing in spring. Mostly before using 80 ℃ warm water soaking, the results germinate. In the spring of 1987, Comrade Wang Chang from the Forestry Bureau of Zhangjiakou region, according to many years of practical experience, poured warm water of about 70 ℃ into the barrel 10 days before sowing the seeds of Sophora japonica at the rate of 1 kg of 2 kg of boiling water, Pour into the water, stirring while pouring, so that the seeds are evenly heated to the water is not hot