The impact of technological innovation
- Created by: rebeccahankinson
- Created on: 04-06-15 11:39
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- The impact of technological innovation
- Who developed the crops?
- Green revolution
- Research institutes e.g. International Rice Research Institute
- Gene Revolution
- TNCs and bio-tech companies
- Green revolution
- Which crops are grown
- Green Revolution
- First crop 'TR8' was rice but other varieties now replace it as more resistant
- Gene Revolution
- Bt maize and Bt cotton and herbicide resistant soybean
- Green Revolution
- Where are the crops grown ?
- Green Revolution
- HYV rice grown in Asia. HYV wheat grown in Latin America. HYV crops in Africa
- Gene Revolution
- GM soya bean most widely planted USA, China, Latin America and Canada have large areas of GM crops
- Green Revolution
- Benefits
- Green Revolution
- Rapid growth allows 2 crops per year
- Yields 10x traditional rice
- Now bred to be disease and pest resistant
- India been self-sufficient in rice since 1980s
- Gene Revolution
- Some varieties have been bred for nutrient e.g. Golden rice contains vitamin A
- Crops are resistant to herbicide so weeds can be killed without crop damage
- Green Revolution
- Have they increased food production?
- Green Revolution
- Yields of wheat, rice and maize grew by 2% year between 1967-1996
- Gene Revolution
- Most GM crops are fed to animals
- Green Revolution
- Unforeseen consequences
- Green Revolution
- 1,Solar polarisation- larger farmers could afford fertilisers ect so benefited the most
- 2, Monocultures- HYVs are vulnerable to new strains of disease
- 3, Dependency- needs high inputs of fertilisers, water and machinery to maintain yields
- 4, Environmental problems- widespread use of agrochemicals lead to Eutrophocation
- Gene Revolution
- 1, Led to export boom which helped Argentina to recover from serious crash in 2001
- 2, Number of farms has fallen by 60,000 as area of GM soybean x3
- 3, Decline in areas of maize and sunflower by 5 million hectares reducing food security among the poor
- Green Revolution
- Who developed the crops?
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