8
Which of the following statements are TRUE with respect to broccoli cultivation?
(A) . The temperature of 20-25 °C is optimum for vegetative growth and 15-20 °C for heading
(B) . Soil pH of 7.0-8.5 is optimum
(C) . Palam Kanchan is yellowish green heading type variety.
(D) . Brown bead is a physiological disorder associated with high K level
(©). Very short shelf-life due to high respiration and transpiration rate
Choose the correct answer from the options given below:
EXPLANATION
Sprouting broccoli
- Agronomic Principles of Sprouting Broccoli (Brassica oleracea var. italica):
- Requires cool weather: $20 - 25^\circ\text{C}$ is optimum for vegetative leaf growth, while $15 - 20^\circ\text{C}$ is required for curd/head initiation. (True).
- Optimum soil reaction is slightly acidic to neutral ($\text{pH } 6.0 - 6.8$); alkaline soils ($ ext{pH} \gt 7.5$) cause trace element deficiencies. (False).
- Palam Kanchan is an improved heading broccoli variety developed by CSKHPKV, Palampur. (True).
- "Brown bead" disorder is caused by high temperatures and boron deficiency, not high potassium. (False).
- Harvested broccoli heads have very high respiration and transpiration rates, resulting in a very short postharvest shelf-life of 2–3 days at ambient conditions. (True).
- Conclusion: Statements (A), (C), and (E) are true.
- Correct Option: Option 2 ((A), (C) and (E) only).
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