Research of Angelica sinensis（Oliv）Diels New Strain DGA200002 Selection

Key words: 
• Angelica sinensis（Oliv）diels /
• new strain DGA200002 /
• heavy ion irradiation /
• research of selection

Abstract: Angelica sinensis（Oliv）Diels new strain DGA200002 was selected successfully by Institute of Modern Physics， Chinese Academy of Sciences， Dryland Farming Research and Extension Center of Dingxi Prefecture， etc. According to the program of new strain selection， this new strain was selected for several years after the dry seeds of Gansu Angelica sinensis（Oliv）Diels 9001 was irradiated by ions of 55 MeV/u ⁴⁰Ar⁺¹⁵. During the period of year 2005—2007， region experiments of Angelica sinensis（Oliv）Diels new strain DGA200002 were developed in Minxian， Weiyuan， Zhangxian and Longxi etc. Average yield of the fresh DGA200002 Angelica was 10 621.5 kg/hm2， and 15.0% production was increased more than control (for 1 386.0 kg/hm2 of 9001).The growth stage of the DGA200002 was 790 d， and it has deep purple stem and yellowwhite root. The quality analysis results are as follows: total ash content is 4.2% and acidfast ash content is 0.4%， 16% and 33.3% better than control， respectively; the lixivium is 61.4%， i.e., 4.4% more than the standard of Pharmacopoeia of People’s Republic of China (2005 edition); the ferulic acid content is 0.148%， i.e., 2.96 times ligher than the standard. All these results showed that the quality of the DGA200002 was better significantly than both control and the standard. It can be grown appropriately at the high， cold and dankness regions at the altitude of 2 000—2 600 m and with a annual precipitation of 500—600 mm.