杜鹃在华北地区用扦插、压条等常规繁殖不太容易,这主要是因为华北地区的水和土壤大都呈碱性,而杜鹃喜欢典型的酸性土。但若采用组培繁殖就不受这些限制,只要选取杜鹃当年生枝条的茎尖就可以了。这也是专业生产常用的方法。采杜鹃当年生嫩枝顶芽,放在自来水下冲洗5分钟,放在烧杯里,倒入洗洁精,并加入适量的水,用小毛刷搅拌,重复2次,然后用清水冲洗干净。把洗净的茎尖放入75％的酒精中浸泡1分钟,然后在无菌超净工作台上用无菌水冲洗4～5次,再用 Rhododendron in North China with cutting, lamination and other conventional breeding is not easy, mainly because of water and soil in North China mostly alkaline, and cuckoo like typical acid soil. However, the use of tissue culture is not subject to these restrictions, as long as the selection of rhododendrons shoot branches of the year on it. This is also the professional production of commonly used methods. Take rhododendrons annual shoots buds, rinse tap water for 5 minutes, placed in a beaker, pour detergent, and add the right amount of water, stirring with a small brush, repeat 2 times, then rinse with water. Wash the tips of the stem into 75% alcohol for 1 minute, and then sterilize the clean bench with sterile water 4 to 5 times, and then