Plant Hormones - Commercial Uses
This lesson covers:
- The uses of the plant hormones auxin, gibberellin, and ethene
Which of the following are plant hormones?
Ethene
Gibberellin
Testosterone
Auxin
Adrenaline
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What are auxins?
A specialised cell type
A family of plant hormones
Plant stem cells
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What are three uses of auxins in agriculture and horticulture?
In weedkillers, to induce flowering and to promote ripening of fruit
In fertilisers, rooting powders and to promote more, larger, flowers
In weedkillers, rooting powders and to promote growth in tissue culture
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Auxins stimulate cells to grow and divide, so how can they be used as weedkillers?
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What is the benefit of selective weedkillers?
They kill some plants but not all
They kill all plants they comes into contact with
They help plants grow
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Which option below is describing dormancy?
Seeds begin to develop and grow
Male and female gametes fuse to create new offspring
Seeds are inactive and do not grow or develop
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Which option below is describing the process of germination?
Seeds begin to develop and grow
Male and female gametes fuse to create new offspring
Seeds are inactive and do not grow or develop
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Which plant hormone can stimulate a plant to geminate?
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Which hormone is responsible for inducing fruit to ripen?
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Explain how ethene is used in the transport of food.
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