Coriander Bloom Control Quiz Quiz

Explore key factors influencing coriander flowering and effective methods to manage bloom timing in horticulture. Challenge your understanding of how cultivation practices impact coriander flower development.

1. Role of Temperature in Coriander Flowering

   Which temperature condition most commonly triggers premature flowering (bolting) in coriander plants?

   1. High daytime temperatures
   2. Consistently low temperatures
   3. Cool, shaded conditions
   4. Fluctuating night temperatures

   Explanation: High daytime temperatures often promote early bolting in coriander, leading to premature flowering and shorter leaf yield. Low temperatures generally delay flowering rather than accelerate it. Shaded conditions and fluctuating night temperatures have less direct impact compared to sustained warmth during the day.

2. Impact of Photoperiod on Coriander Blooming

   When coriander is grown under long-day photoperiods, what major effect is observed?

   1. Delayed flowering
   2. Earlier onset of flowering
   3. No effect on flowering time
   4. Increased leaf production

   Explanation: Long-day conditions accelerate flowering in coriander because it is a long-day plant with respect to bolting. Increased leaf production is more typical before bolting. Delayed flowering and no effect are incorrect as photoperiod does have a significant role.

3. Irrigation Practices and Flowering

   How does irregular or insufficient watering generally affect coriander flowering patterns?

   1. Prevents seed development
   2. Promotes abundant leafy growth
   3. Delays flowering significantly
   4. Causes stress-induced early flowering

   Explanation: Water stress is known to accelerate flowering as a survival response in coriander, often leading to lower yield. Proper irrigation supports leafy growth but inconsistent watering does the opposite. Delayed flowering and prevention of seed formation are unlikely results.

4. Varietal Choice and Bloom Timing

   Which characteristic should be considered when selecting coriander varieties for delayed bolting?

   1. Short plant height
   2. Dark green leaf color
   3. Genetic resistance to early flowering
   4. Large seed size

   Explanation: Choosing varieties bred for resistance to premature bolting helps extend vegetative growth. Plant height, leaf color, and seed size may be desirable traits but are not directly linked to bloom timing control.

5. Nutrient Management and Coriander Flowering

   What is the effect of excessive nitrogen fertilization on coriander's flowering process?

   1. Causes immediate bolting
   2. Reduces root development
   3. Delays flowering and increases leaf mass
   4. Prevents flowering entirely

   Explanation: High nitrogen levels promote vegetative growth and may postpone bolting in coriander. Immediate bolting is typically caused by temperature or stress, not nitrogen. Nitrogen does not prevent flowering or significantly inhibit root development in normal amounts.