有了优良品种,既不增加劳动力、肥料,也可获得较多的收成.橡胶树是多年生的植物,品种好坏直接影响到几十年的生产布局和经济效益,甚至关系到植胶事业的成败.为了适应当前橡胶生产的需要,兹把国内外对三合树的研究传况以及我所研究的初步结果作概括介绍. With excellent varieties, neither increased labor, fertilizers, but also get more harvest rubber tree is a perennial plant, the variety of good or bad directly affects the production layout and economic benefits for decades, and even related to the success or failure of plastic plants In order to meet the needs of the current rubber production, I hereby give an overview of the research status of the trimeric tree at home and abroad and the preliminary results I have studied.