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东北岩高兰(Empetrum nigrum var.japoicum)因其稀有濒危而被列为我国国家二级重点保护植物。在我国仅此一变种,分布在我省及内蒙古东部的大兴安岭海拔1200～1400 m的亚高山带,是亚高山矮曲林带的特小灌木之一。其亚种是用种子繁殖,不但结实量少,不易繁殖,而且日趋稀有,无性繁殖又未见报导,笔者于1983年在黑龙江省森林植物园对东北岩高兰进行研究工作。1986年在园内进行扦插繁殖试验,在不同时间选取带踵和不带踵的插穗,并用不同的生根剂处理插穗基部。试验结果表明,7月初至8月末均可进行扦插,但不同插穗和生根剂处理的成活率差异显著,以一年生带踵插穗,经chwe爆发性生根剂和chwe爆发性生根粉速蘸处理效果最好,扦插成活率为39.1％—40.9％;移植成活率为25.0％—30.4％。
Empetrum nigrum var. Japoicum is listed as a national key secondary protection plant in China because of its rare and endangered nature. In our country, only this variation is distributed in the subtropical high of 1200 ~ 1400 m above sea level in Daxinganling of our province and eastern Inner Mongolia. Its subspecies is the seed breeding, not only the sturdy, less easy to multiply, but increasingly rare, asexual reproduction and no reports, the author in 1983 in Heilongjiang Province Forest Botanical Garden on the Northeast rocky highland research work. In 1986 in the garden cutting propagation test, at different times with and without heel selection cuttings, and with different rooting agent processing cuttings base. The results showed that cutting could be done from the beginning of July to the end of August, but there was significant difference in the survival rate between different cuttings and rooting agents. One-year heel cuttings had the best effect of chwe and chwe Good, the survival rate of cuttings was 39.1% -40.9%; graft survival rate was 25.0% -30.4%.