Question

Gladiolus cut-spikes are pre-cooled at :

• A. 1°C
• B. 4°C
• C. 6°C
• D. 10°C

Hint:

Always pre-cool gladiolus spikes at around 4°C immediately after harvest to maintain freshness and prolong vase life.

Answer 1

The Correct Option is B

Pre-cooling is an important post-harvest step for cut flowers, including gladiolus. It helps to remove field heat and slow down metabolic activities, thereby extending vase life. Gladiolus spikes are typically pre-cooled at a temperature of 4°C, which is considered optimal for maintaining freshness without causing chilling injury.
(A) 1°C – Incorrect. Too low and may cause chilling injury to gladiolus spikes.
(B) 4°C – Correct. This is the ideal pre-cooling temperature for gladiolus cut-spikes.
(C) 6°C – Incorrect. Slightly higher than optimal, may not effectively remove field heat.
(D) 10°C – Incorrect. Not effective enough for pre-cooling and may reduce storage quality.