Question

Match List I with List II
List I (Crop)
A. Cow pea
B. French bean
C. Cluster bean
D. Indian bean
List II (Scientific Name)
I. {Vigna sinensis
II. {Phaseolus vulgaris
III. {Cymopsis tetragonoloba
IV. {Dolichos lablab
Choose the correct answer from the options given below:

• A. A-I, B-II, C-III, D-IV
• B. A-II, B-III, C-IV, D-I
• C. A-III, B-I, C-II, D-IV
• D. A-IV, B-III, C-I, D-II

Hint:

To remember: French bean is the classic "common bean" (Phaseolus vulgaris), and Cluster bean is "guar" (Cyamopsis tetragonoloba). This allows you to quickly identify the correct matching.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Botanical nomenclature utilizes a standardized two-part naming system (genus and species) to classify plants.
Many common leguminous crops (beans and peas) belong to the Fabaceae family but are classified under different genera based on their floral and vegetative structures.

Step 2: Detailed Explanation:
Let us match each common legume crop to its botanical name:
1. Cow pea (A): This is a highly adaptable, drought-tolerant legume crop.
Its scientific name is Vigna sinensis (also classified as Vigna unguiculata subsp. unguiculata).
Thus, A matches with I.
2. French bean (B): This is a widely cultivated common bean grown for its edible green pods and dry seeds.
Its scientific name is Phaseolus vulgaris.
Thus, B matches with II.
3. Cluster bean (C): Also known as guar, this crop is a source of guar gum.
Its scientific name is Cyamopsis tetragonoloba (spelled as "Cymopsis" in the question text).
Thus, C matches with III.
4. Indian bean (D): Also known as lablab bean or hyacinth bean, this is a popular climbing legume.
Its scientific name is Dolichos lablab (or Lablab purpureus).
Thus, D matches with IV.
Combining these matches: A-I, B-II, C-III, D-IV.
This matches Option 1.

Step 3: Final Answer
The correct botanical matching is A-I, B-II, C-III, D-IV.