Agriculture 2 Flashcards
1
Q
World’s population 2050
A
Estimated to exceed 9 billion, mainly happening in the developing world
2
Q
Wheat
A
represents 20% of global daily protein and calories
3
Q
For every 1C temperature difference…
A
Wheat yields decrease by 4-6%
4
Q
Food production challenges
A
- Rise of Biofuels
- Urbanisation
- Climate change
- Soil degradation
5
Q
To be sustainable and keep up with demands, we must..
A
- Increase yields sustainably
- Reduce water, fertiliser and pesticide consumption
- Make crops/livestock more resistant to climate change
6
Q
Photosynthesis productivity can be affected by..
A
- Solar radiation
- Light interception
- Conversion effeciency
7
Q
Genetic yield potential
A
The yield that a crop can obtain under optimal management practices and in the absense of stress factors
8
Q
Free Air Co2 Enrichment (FACE)
A
experiments with Rubisco enzyme to increase photosynthesis efficency
9
Q
Why is there a need to decrease photorespiration?
A
- Energy demanding and long-lasting
- Decreases US Soybeans by 36%
- Decreases Wheat by 20%
10
Q
Improving Photosynthesis
A
- Increasing CO2 - convert C3 crops into C4
- Rubisco and Regulation - Replacing Rubisco with more efficent enzymes, increasing activation rates
- RUBP supply - improving regeneration by overexpressing SBPase, GDC and FBPa
11
Q
2050 food demand
A
Globally, production must produce 60% more food
