The Study on the Characteristics and Distribution Laws of Wild Buckwheat Germplasm Resources along the Jinsha River of Liangshan Area

In Liangshan area,the climate is various;ecological types are diversified,especially the Jinsha River is the special ecological section with rich crop idioplasm.Through the on-the-spot investigation into the wild buckwheat idioplasm resources of more than 360 different ecological areas of 120 villages and towns in 6 counties on the spot,the author finds that there are 7 species,2 varieties,and 1 subspecies.The author also knows the characteristics and distribution laws of wild buckwheat idioplasm resources in this area;and finds unreported miniplasmids red-flowered grassy and hardwood F.urophyllum;the botanical features of F.z are not the same as the named-species,which are likely to be new species or varieties(undetermined).