Question:
Which of the following physiological disorder exhibit premature initiation of floral buds and elongation of peduncle in cauliflower ?
Which of the following physiological disorder exhibit premature initiation of floral buds and elongation of peduncle in cauliflower ?
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To prevent ricyness and other curd disorders, select cultivars that are well-adapted to the local seasonal temperatures and avoid applying excess nitrogen during curd development.
Updated On: Jul 23, 2026
- Ricyness
- Fuzziness
- Leafiness
- Whiptail
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Physiological disorders in vegetable crops are abnormalities caused by environmental factors, nutritional imbalances, or temperature extremes rather than pathogens.
Cauliflower (*Brassica oleracea* var. *botrytis*) is highly sensitive to environmental conditions during curd development.
Step 2: Detailed Explanation:
Let us analyze the physiological disorders listed in the options:
1. Ricyness: This disorder is characterized by the premature initiation of floral buds and the elongation of peduncles within the curd.
Instead of forming a compact, smooth curd, the surface develops a granular, loose, or "rice-like" appearance.
This is primarily caused by temperature fluctuations (such as warm weather during curd maturity), applying excess nitrogen fertilizers, or choosing unsuitable varieties for the season.
2. Fuzziness: This occurs when the curd develops a velvet-like or fuzzy texture due to the elongation of individual flower pedicels, often caused by warm temperatures.
3. Leafiness: This occurs when small, green leaves grow through the curd, reducing its quality and marketability, often triggered by high temperatures.
4. Whiptail: This is caused by molybdenum deficiency, resulting in restricted leaf blade development where leaves become thin, strap-like, or thread-like (resembling a whip).
Step 3: Final Answer:
The physiological disorder characterized by premature floral bud initiation and peduncle elongation is Ricyness, corresponding to option (A).
Physiological disorders in vegetable crops are abnormalities caused by environmental factors, nutritional imbalances, or temperature extremes rather than pathogens.
Cauliflower (*Brassica oleracea* var. *botrytis*) is highly sensitive to environmental conditions during curd development.
Step 2: Detailed Explanation:
Let us analyze the physiological disorders listed in the options:
1. Ricyness: This disorder is characterized by the premature initiation of floral buds and the elongation of peduncles within the curd.
Instead of forming a compact, smooth curd, the surface develops a granular, loose, or "rice-like" appearance.
This is primarily caused by temperature fluctuations (such as warm weather during curd maturity), applying excess nitrogen fertilizers, or choosing unsuitable varieties for the season.
2. Fuzziness: This occurs when the curd develops a velvet-like or fuzzy texture due to the elongation of individual flower pedicels, often caused by warm temperatures.
3. Leafiness: This occurs when small, green leaves grow through the curd, reducing its quality and marketability, often triggered by high temperatures.
4. Whiptail: This is caused by molybdenum deficiency, resulting in restricted leaf blade development where leaves become thin, strap-like, or thread-like (resembling a whip).
Step 3: Final Answer:
The physiological disorder characterized by premature floral bud initiation and peduncle elongation is Ricyness, corresponding to option (A).
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