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Harnessing Photosynthesis in Tomorrow’s World: Humans, Crop Production and Poverty Alleviation

Conference paper

Abstract

Photosynthesis Is The Solar Energydependent Process On Which Food Production For Human Existence Ultimately Depends. Each Day Passes With 854 Million People Hungry And, For That Reason, The United Nations Millennium Declaration Committed The World’S Nations To èRadicate Extreme Poverty And Hunger’. Sixty Percent Of The World’S Population Lives In Asia, Where Each Hectare Of Land Used For Rice Production Currently Provides Food For 27 People, But By 2050 That Land Will Have To Support At Least 43 People. In 2007, About 250 Million Tonnes Of Carbon Will Be Fixed In Rice Grains; By 2050, Fixation Will Have To Rise To About 400 Million Tonnes. However, The Elite Rice Cultivars, Which Dominate The Food Supply Of The Millions Of Poor People In Asia, Have Approached A Yield Barrier And Growth In Production Is Slowing. In This Paper, The Role Of Photosynthesis In Solving Some Of The Food And Environmental Problems Of Tomorrow'S World Is Discussed. In Particular, The Possibilities And Constraints Associated With Producing A Very Large Increase In Yield, Water-Use Efficiency And Nitrogen-Use Efficiency By Developing A C4 Rice Are Examined.

Keywords

Poverty alleviation crop photosynthesis food yield rice 

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Copyright information

© Springer Science + Business Media, B.V. 2008

Authors and Affiliations

  1. 1.Crop and Environmental Sciences DivisionInternational Rice Research InstituteMetro ManilaPhilippines
  2. 2.Department of Animal and Plant SciencesUniversity of SheffieldSheffieldUK

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