Genetic analysis of main traits and selection of superior provenances and superior individuals of Atractylodes macrocephala

It was found through cultivation of Atractylodes macrocephala from 20 provenances distributed in 8 provinces and cities from 2003 to 2004 that there were great differences in standard and quality of original rhizomes of Atractylodes macrocephala .The main reasons for this phenomenon are that the materials to be planted are in chaos and there were no cultivars so far .A genetic analysis reveals that there are great genetic variations either between provenances or between individuals in terms of main traits , and most traits have a medium or high heredity . So selection might lead to good genetically improved results .On the basis of characteristics of genetic variation , provenance test and selection of superior individuals , it was found that Shiliang in Tiantai County and West Mount Tianmu in Lin'an City were good provenances of Atractylodes macrocephala .Methodology and standard for selection of superior individuals were worked out .[ Ch , 3 tab .4 ref .]