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Diet of people throught time

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Table of contents

  • Neolithic Revolution
  • Antic times
  • Agriculture up to the 20th century
  • The Green revolution
  • Aritificial selection

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Neolithic revolution

  • Hunter Gtherer societies
  • Discovery of fire and taming and domestication of animals
  • Negative aspect of domestication - zoonosis

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ANTIC TIMES

  • Egypt – Nile Valleyn
    • Largest production of wheats in the Ancient world

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  • Antic Greece – grapevine and olives
    • Low quality soil
    • Importing food from other countries

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  • Rome – biggest expansion during the time of the empire
    • Development of iron tools for farming

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Agriculture up to the 20th century

  • The Dark Ages – agriculture and farming are underdeveloped
  • Olivier de Serres
  • Agricultural renaissance in the 19th century
    • First time that people start using mineral fertilizer

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The green revolution

  • From 1930 to 1980
  • Goal – increase in yield of crops
  • Negative aspect – pollution

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Artificial selection

  • Plant breeding
  • Artificial selection
  • Methods of artificial selection:
    • Hybridization
    • Inducted mutations
    • Molecular genetic methods - Genetically modified organism

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HYBRIDIYATION

  • Crossing genetically different perents for a greater diversity

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INDUCTED MUTATIONS

  • Caused by environmental factors
    1. Induces gene mutations
    2. Indused polyploidy

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Molecular genetic methods-GMO

  • An organism obtained by inserting part of the genome of another organism