Question:
Which of the following is NOT true for rootstock 13 - 1?
Which of the following is NOT true for rootstock 13 - 1?
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Israel = Salinity experts.
Rootstock 13-1 = Salinity tolerance.
Vellaikulumban = Dwarfing.
Rootstock 13-1 = Salinity tolerance.
Vellaikulumban = Dwarfing.
Updated On: Aug 13, 2026
- It is mango rootstock
- Developed from Israel
- Salt tolerant
- Dwarfing rootstock
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Rootstocks in mango are used to impart specific traits to the scion variety. Most mangoes in India are traditionally grown on "local" or "vigorous" seedling rootstocks, but specialized rootstocks have been identified globally for abiotic stress tolerance and size control.
Step 2: Detailed Explanation:
1. It is a mango rootstock: This is true. 13-1 is a well-known clonal rootstock used in mango cultivation.
2. Developed from Israel: This is true. Israel faces significant challenges with soil salinity and brackish water. Researchers at the Volcani Center in Israel identified and released 13-1 as a solution for mango production in these harsh environments.
3. Salt tolerant: This is true. The primary commercial value of 13-1 is its exceptional tolerance to high levels of salts (salinity) in the soil and irrigation water. It excludes toxic ions like Sodium and Chloride from reaching the scion, thus allowing the tree to grow where other rootstocks would fail.
4. Dwarfing rootstock: This is false. 13-1 is actually a vigorous to semi-vigorous rootstock. It does not provide significant dwarfing or size-control benefits. In mango, the most famous dwarfing rootstocks are 'Vellaikulumban' and 'Olour'.
Since the question asks for the statement that is NOT true, option 4 is the correct choice.
Step 3: Final Answer:
Rootstock 13-1 is recognized for salt tolerance but is not a dwarfing rootstock.
Rootstocks in mango are used to impart specific traits to the scion variety. Most mangoes in India are traditionally grown on "local" or "vigorous" seedling rootstocks, but specialized rootstocks have been identified globally for abiotic stress tolerance and size control.
Step 2: Detailed Explanation:
1. It is a mango rootstock: This is true. 13-1 is a well-known clonal rootstock used in mango cultivation.
2. Developed from Israel: This is true. Israel faces significant challenges with soil salinity and brackish water. Researchers at the Volcani Center in Israel identified and released 13-1 as a solution for mango production in these harsh environments.
3. Salt tolerant: This is true. The primary commercial value of 13-1 is its exceptional tolerance to high levels of salts (salinity) in the soil and irrigation water. It excludes toxic ions like Sodium and Chloride from reaching the scion, thus allowing the tree to grow where other rootstocks would fail.
4. Dwarfing rootstock: This is false. 13-1 is actually a vigorous to semi-vigorous rootstock. It does not provide significant dwarfing or size-control benefits. In mango, the most famous dwarfing rootstocks are 'Vellaikulumban' and 'Olour'.
Since the question asks for the statement that is NOT true, option 4 is the correct choice.
Step 3: Final Answer:
Rootstock 13-1 is recognized for salt tolerance but is not a dwarfing rootstock.
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