Species diversity of wild relatives to crop plants. – Botanica Lithuanica, Suppl. 2: 31–35.

There is a great richness of species diversity in the wild growing plant genetic resources of Germany. An estimation resulted in 1 150 species belonging to different groups of use. This figure has been taken for a rough calculation of the global plant genetic resources – 115 000 species. This number, which is based in the results of only one country, should be further elaborated. But its dimension shows that most of the wild plant genetic resources, which are globally threatened by genetic erosion, should be maintained, though breeding and breeding research are increasingly interesting in this material and accordingly gene banks make efforts for its conservation. A complementary system for maintaining plan genetic resources is necessary, considering also the wild relatives of crop plants and other useful materials.

Keywords: plants genetic resources, wild plants, biodiversity.