The creation of a genetic fund of source material for selection in our country is associated with the name of N.I. Vavilova. Under his leadership, dozens of expeditions were sent to various parts of the globe to search for the precursors of many cultivated plants. Based on rich expeditionary material, geographical centers of origin of cultivated plants were established. Centers of cultivated plants are the places where their greatest species and varietal diversity was observed. As a rule, they coincide with the centers of ancient agriculture. The study identified seven centers (South Asian, East Asian, Southwestern Asian, Mediterranean, Abyssinian, Central American, South American). Thanks to the creation of this fund, great strides have been made in the development of new varieties of grain, industrial, vegetable, fruit crops.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.