Question:
Ethylene is a plant hormone known to influence post-harvest ripening. Which of the following fruits is not sensitive to ethylene?
Ethylene is a plant hormone known to influence post-harvest ripening. Which of the following fruits is not sensitive to ethylene?
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To store climacteric fruits (like bananas) for longer periods, they are kept in controlled atmospheres with low oxygen, high carbon dioxide, and ethylene scrubbers to delay ripening.
Updated On: Jul 13, 2026
- Banana
- Tomato
- Mango
- Grapes
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Fleshy fruits are classified as climacteric or non-climacteric based on their respiration rate and ethylene production patterns during ripening.
Step 2: Detailed Explanation:
- Climacteric Fruits (such as banana, tomato, and mango) show a sharp increase in respiration and ethylene production during ripening. These fruits are highly sensitive to exogenous ethylene, which accelerates their ripening process. They can be harvested green and ripened artificially.
- Non-Climacteric Fruits (such as grapes, citrus, and strawberries) do not show a respiratory burst or a surge in ethylene production during ripening. Exogenous ethylene application does not trigger or accelerate their ripening process. Therefore, these fruits are not sensitive to ethylene for ripening and must ripen fully on the plant before harvest.
- Among the options, Grapes are non-climacteric and are not sensitive to ethylene for post-harvest ripening.
Step 3: Final Answer:
Grapes are non-climacteric fruits and are not sensitive to ethylene for ripening.
Fleshy fruits are classified as climacteric or non-climacteric based on their respiration rate and ethylene production patterns during ripening.
Step 2: Detailed Explanation:
- Climacteric Fruits (such as banana, tomato, and mango) show a sharp increase in respiration and ethylene production during ripening. These fruits are highly sensitive to exogenous ethylene, which accelerates their ripening process. They can be harvested green and ripened artificially.
- Non-Climacteric Fruits (such as grapes, citrus, and strawberries) do not show a respiratory burst or a surge in ethylene production during ripening. Exogenous ethylene application does not trigger or accelerate their ripening process. Therefore, these fruits are not sensitive to ethylene for ripening and must ripen fully on the plant before harvest.
- Among the options, Grapes are non-climacteric and are not sensitive to ethylene for post-harvest ripening.
Step 3: Final Answer:
Grapes are non-climacteric fruits and are not sensitive to ethylene for ripening.
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