Question

Read given statements and choose true statements :
A. Cymbopogon citratus is American lemongrass.
B. C. flexuosus is known as Malabar grass.
C. Lemon grass is an annual and aromatic grass.
D. Lemon grass is commercially propagated through cutting.
E. CKP-25, is hybrid variety of lemon grass.
Choose the correct answer from the options given below :

• A. B, C, D only
• B. A, B, D only
• C. A, B, E only
• D. B, D, E only

Hint:

Lemongrass Species Quick Facts:
- C. flexuosus = East Indian Malabar Lemongrass.
- C. citratus = West Indian Lemongrass.
- Perennial multi-cut aromatic grass propagated via vegetative slips.

Answer 1

The Correct Option is D

Step 1: Understanding the Question:
The question requires assessing five statements concerning lemongrass (Cymbopogon species) taxonomy, growth habit, propagation, and breeding to select the correct set of true statements.

Step 2: Detailed Evaluation of Each Statement:

• Statement A: False. Cymbopogon citratus is commonly known as West Indian Lemongrass (whereas C. flexuosus is East Indian Lemongrass).
• Statement B: True. Cymbopogon flexuosus is botanically known as East Indian Lemongrass or Malabar grass.
• Statement C: False. Lemongrass is a perennial aromatic grass (not an annual grass), remaining productive for $4--5$ years.
• Statement D: True. Lemongrass is commercially propagated vegetatively using slips (rooted stem/clump divisions/cuttings) to maintain uniform citral oil quality.
• Statement E: True. 'CKP-25' is an outstanding interspecific hybrid variety developed by crossing C. flexuosus $\times$ C. pendulus.

Step 3: Detailed Explation:

• Statements B, D, and E represent accurate botanical and agronomic facts.
• Statement C is incorrect because lemongrass yields multiple herb harvests per year across several perennial growing seasons.
• Thus, option (D) correctly selects B, D, E only.

Step 4: Fil Answer:
The true statements are B, D, E only. Hence, option (D) is the correct choice.