Study on the Germ Plasma Resources of the Wild Fruit Tree and its Exploitation in Gansu

Gansu province is located in the northern rim of temperate zone,warm temperate zone and subtropical zone with diversified climate types.Therefore,it owns abundant wild fruit tree resources.This researches made many years showed that there were 33 families,72 categories,329 species and 48 varieties of ligneous wild fruit tree in Gansu.The paper was mainly focused on the types of wild fruit tree in Gansu,the types of fruit,the geographical distributions of its species and categories,and its distribution in Gansu province and its exploitation.The paper provided theoretical support for the better preservation and the appropriate exploitation.