1980年10月在彭水县共和乡幸福村进行油桐品种调查时,偶然地发现了一株叶片略带紫色的油桐树(我们暂时就把它叫作紫叶桐),当时桐果已采收.第二年秋前往采摘了少数桐果,1982年春在涪陵地区林科所进行了播种试验.桐苗第一对叶片色泽较深,如高锰酸钾液色.为了解紫叶桐的生理生化效应,1984年6月21日进行了光合作用测定,现将结界报告于后. In October 1980 in Tongshui County, Penglai County, happiness village for the tung species investigation, accidentally discovered a leaf slightly purple tung tree (we temporarily put it as purple leaf tung), when Tongguo Harvest the following year to the fall of picking a few Tongguo, Spring 1982 Fulin region in Lin Branch conducted sowing test. Tongmiao the first pair of leaves darker color, such as potassium permanganate liquid color. Physiological and biochemical effects, June 21, 1984 for photosynthesis determination, the enchantment report is now reported later.