Question:
Which Mallus species is known as Siberian crab?
Which Mallus species is known as Siberian crab?
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Wild crab apple species like Malus baccata (Siberian crab) and Malus floribunda (Japanese crab) are highly valued in modern horticulture as sources of resistance genes against biotic stresses like apple scab and abiotic stresses like winter injury.
Updated On: Jul 23, 2026
- M. baccata
- M. coronaria
- M. floribunda
- M. angustifolia
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
This question focuses on the botanical classification and common nomenclature of wild relatives within the genus Malus (commonly misspelled as Mallus in some older Indian horticultural exams).
Identifying wild species and their corresponding common names is crucial for apple breeding, rootstock selection, and germplasm conservation.
Step 2: Detailed Explanation:
Let us analyze each of the listed Malus species:
1. Malus baccata:
This species is commonly known as the Siberian crab apple.
It is native to Northern Asia, including Siberia, and is highly valued for its extreme cold hardiness, resistance to diseases, and compact growth habit.
Because of these qualities, it is frequently used as a rootstock or genetic donor in apple breeding programs in cold-temperate climates.
Thus, this is the correct match.
2. Malus coronaria:
Commonly known as the sweet crab apple or garland crab, this species is native to eastern North America and is distinct from the Siberian crab.
Thus, Option (B) is incorrect.
3. Malus floribunda:
Commonly known as the Japanese flowering crab apple, this species is popular as an ornamental plant due to its beautiful pink-to-white blossoms.
Thus, Option (C) is incorrect.
4. Malus angustifolia:
Commonly known as the southern crab apple, this species is native to the southeastern United States.
Thus, Option (D) is incorrect.
Step 3: Final Answer:
Malus baccata is the species known as the Siberian crab.
This corresponds to Option (A).
This question focuses on the botanical classification and common nomenclature of wild relatives within the genus Malus (commonly misspelled as Mallus in some older Indian horticultural exams).
Identifying wild species and their corresponding common names is crucial for apple breeding, rootstock selection, and germplasm conservation.
Step 2: Detailed Explanation:
Let us analyze each of the listed Malus species:
1. Malus baccata:
This species is commonly known as the Siberian crab apple.
It is native to Northern Asia, including Siberia, and is highly valued for its extreme cold hardiness, resistance to diseases, and compact growth habit.
Because of these qualities, it is frequently used as a rootstock or genetic donor in apple breeding programs in cold-temperate climates.
Thus, this is the correct match.
2. Malus coronaria:
Commonly known as the sweet crab apple or garland crab, this species is native to eastern North America and is distinct from the Siberian crab.
Thus, Option (B) is incorrect.
3. Malus floribunda:
Commonly known as the Japanese flowering crab apple, this species is popular as an ornamental plant due to its beautiful pink-to-white blossoms.
Thus, Option (C) is incorrect.
4. Malus angustifolia:
Commonly known as the southern crab apple, this species is native to the southeastern United States.
Thus, Option (D) is incorrect.
Step 3: Final Answer:
Malus baccata is the species known as the Siberian crab.
This corresponds to Option (A).
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