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Elongation and improvement of shape of a...

Elongation and improvement of shape of apple fruit is carried out by which of the following growth regulator ?

A

Auxin

B

GA

C

Ethylene

D

ABA

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Growth Regulators**: Growth regulators are substances that influence the growth and development of plants. They play crucial roles in various physiological processes, including fruit development. 2. **Identifying the Options**: The question provides four options: - A) Oxyene - B) GA (Gibberellin) - C) Ethylene - D) ABA (Abscisic Acid) 3. **Analyzing Each Option**: - **Oxyene**: This is not a commonly recognized growth regulator in plant physiology. - **Gibberellin (GA)**: Known for promoting stem elongation, seed germination, and fruit development. It is particularly effective in improving the shape of fruits. - **Ethylene**: A hormone associated with fruit ripening and senescence, but not primarily responsible for elongation. - **Abscisic Acid (ABA)**: Primarily involved in stress responses and inhibiting growth, not in elongation or shape improvement. 4. **Determining the Correct Answer**: Based on the analysis, Gibberellin (GA) is the growth regulator that promotes elongation and improves the shape of apple fruit. 5. **Conclusion**: The correct answer to the question is **B) GA (Gibberellin)**.
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