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Question
The figure given below shows the stages of ripening in a banana. Answer the questions that follow:
- Name the plant hormone responsible for the above changes.
- Mention two characteristic features of this hormone.
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Solution
- Ethylene is the hormone responsible for the above changes. At ordinary temperatures, ethylene is a gas; it helps in the ripening of bananas when stored together.
- Characteristic features of ethylene:
- It is synthesised in senescent leaves and flowers, germinating seeds and ripening fruits.
- It promotes root growth and root hair formation and it also induces and promotes fruit ripening.
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