Comparison of chlorogenic acid yield in tender leaves of different ramie germplasm

Chlorogenic acid yield of different ramie tender leaves were analyed in this study. The result showed that the chlorogenic acid yield differences are more obvious for different varieties of ramie ,Xiangtan Qingpima and Sichuan Hongxian Yuanma all had higher yield were 19.809 kgha-1 and 16.714 kgha-1（the agronomic traits and the average content of chlorogenic acid were more better than other germplasm of ramie）, instead that the yield of Changning Qingjiaoma ，Anren Huangjiama ，Suining Qingma，Yuanjiang Qingma，Anren Huangshuimawas low between 2.191-1.268 kgha-1. the factors that affect the chlorogenic acid production was ramie leaves yield(dry weight) and the content of chlorogenic acid in ramie leaves. At the same time ,the agronomic traits also produced a variety of integrated effects for the yield of chlorogenic acid of different germplasm of ramie.