火炬树(Rnus typhina)原产北美,我所于1975年开始引种,现已大量结实。近几年,生产的种苗已推广到宁夏、辽宁、甘肃、吉林、安徽及华北各省区。火炬树的繁殖方法有播种、根插和根蘖育苗等,现将具体方法简述于下。一、播种育苗 1.种子调制火炬树种子9月下旬成熟,不脱落。将成熟的果穗采回后晒2-3天,用木棍敲打,再将果实放入3％的碱水中浸泡2小时左右,用手搓掉蜡质,并用砖搓,漂去果皮,晒干后簸去杂质即得纯种。 2.整地育苗地应选择地势平坦,灌溉方便,光线充足的地方。于秋季对圃地进行深翻,翌年春 Rnus typhina native to North America, I started the introduction in 1975, is now a large number of strong. In recent years, the seed production has been extended to Ningxia, Liaoning, Gansu, Jilin, Anhui and North China provinces and autonomous regions. Rhus typhina reproductive methods are planting, rooting and root tillering nursery, now the specific methods outlined below. First, sow seedlings 1. Seed modulation Torch tree seeds mature in late September, do not fall off. The mature ear recovered after the sun 2-3 days, beat with a stick, and then the fruit into the 3% alkali water soak for about 2 hours, rub the wax off by hand and rub with the rub, peel and dried After the bumpy impurities to get purebred. 2 site preparation nursery should choose flat, easy irrigation, light enough place. Deep in the autumn on the nursery, the following spring