The concept of center of origin of crop plants was proposed by

Solution (By Examveda Team)

The concept of the center of origin of crop plants was proposed by N. I. Vavilov.
A center of origin is a geographical area where a group of organisms, either domesticated or wild, first developed their distinctive properties. They are also considered centers of diversity.
Centers of origin were first identified in 1924 by Nikolai Vavilov.
A Vavilov Center (of Diversity) is a region of the world first indicated by Nikolai Vavilov to be an original center for the domestication of plants.