intro to plants - lecture 5 Flashcards Preview

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Flashcards in intro to plants - lecture 5 Deck (7)
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1

What is the main reason to study plant development?

- feeding a growing population
- 9.6 billion people in 2050 ( grain production must double)

2

what did crops used to be like?

The crops were much larger , longer stem act

3

What did the green revolution do?

- dwarfing of wheat and rice
- cheap fertilisers ( Nitrogen , pesticides, mechanisation , irrigation)
- rht ( reduced height genes)

4

When and where did the green revolution begin?

Mexico, 1943

5

Why is the yield increase plateauing?

- feed a growing population
- by 2030 need to produce 50% more food

6

What plants to study?

- angiosperms; 352,000 species
- Arabidopsis thaliana

7

why is Arabidposis thliana the best plant to study?

- 6-8 weeks sees to sees
- 5 chromosomes pairs
- 27,000 genes