Centers of Diversity, Vavilov centers of diversity, Primary and Secondary centers of diversity of plants. Simple and easy notes for Bsc, Msc and agriculture students.

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 WHAT ARE CENTERS OF DIVERSITY?

  • Center of Diversity is a place or location were greater genetic diversity or variety of a crop is found.
WHO IS VAVILOV?
  • Vavilov, was a Russian geneticist and plant breeder.
  • Vavilov and his colleagues visited several countries and collected cultivated plants from each region.
  • Based on his studies of collection, he proposed eight main centers of diversity and three subsidiary centers of diversity.
VAVILOVS CENTERS OF DIVERSITY
  • According to Vavilov there are 8 Main centers of crop diversity:
  • (1) China, (2) India (Hindustan), (3) Central Asia, (4) Asia Minor (5) Mediterranean, (6) Abyssinia, (7) Central America (8) South America.
  • There are three subsidiary centers of diversity. These are:                                                                (1) Indo-Malaya, (2) Chile (3) Brazil
WHAT ARE PRIMARY AND SECONDARY CENTERS OF DIVERSITY?

  • Primary center of diversity is the area where the great diversity of crop originated from wild species is seen.
  • Secondary center of diversity is the region where the great diversity of plants is seen but they have not originated from that area.

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