Question

Mutation breeding was performed on moong beans to make it resistant to ______.

• A. Powdery mildew
• B. Black rot
• C. Leaf curl
• D. Curl blight

Hint:

Mutation breeding helps create disease-resistant crop varieties without introducing foreign genes.

Answer 1

The Correct Option is A

Step 1: Understanding mutation breeding.
Mutation breeding is a technique in which mutations are artificially induced using chemicals or radiation to develop desirable traits such as disease resistance in crop plants.
Step 2: Application in moong bean.
Moong bean (Vigna radiata) was subjected to mutation breeding to develop resistance against powdery mildew, a fungal disease that severely affects crop yield.
Step 3: Analysis of options.
(A) Powdery mildew: Correct, as mutation breeding successfully produced resistant varieties.
(B) Black rot: Commonly affects fruits like grapes and cabbage, not moong bean.
(C) Leaf curl: Mostly associated with viral infections in crops like cotton and tomato.
(D) Curl blight: Not related to mutation breeding in moong bean.
Step 4: Conclusion.
Mutation breeding in moong bean was carried out to develop resistance against powdery mildew.