Question:
Excellent host for sandal wood tree is ______________
Excellent host for sandal wood tree is ______________
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In sandalwood plantations, a ratio of 1:1 or 1:2 between host trees and sandalwood is usually maintained to ensure the parasite receives enough nutrition throughout its rotation.
Updated On: Aug 20, 2026
- Tectona grandis
- Melia dubia
- Sweitenia mahagony
- Casuarina equisetifolia
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
The question relates to the cultivation requirements of Sandalwood ($Santalum$ $album$), which is a root hemi-parasite and requires host plants to thrive during its growth stages.
Step 2: Detailed Explanation:
• Sandalwood is an obligate root parasite. While it performs photosynthesis, it draws water and essential minerals (especially nitrogen and phosphorus) from the roots of neighboring plants using specialized structures called haustoria.
• For successful sandalwood cultivation, a sequence of hosts is required: primary hosts for the nursery/early stage (like $Cajanus$ $cajan$) and secondary/permanent hosts for the field stage.
• Casuarina equisetifolia is considered an excellent permanent host because it is a nitrogen-fixing tree. It produces a dense root system with extensive nodules that provide an abundant supply of nutrients to the sandalwood parasite.
• Research indicates that sandalwood trees grown with nitrogen-fixing hosts like Casuarina or Acacia show significantly better growth rates and heartwood formation compared to those grown with non-leguminous hosts.
• Although $Melia$ $dubia$ and $Tectona$ $grandis$ can occasionally act as hosts, they are not as efficient or widely recommended as Casuarina in commercial sandalwood silviculture.
Step 3: Final Answer:
Casuarina equisetifolia is regarded as an excellent host for the sandalwood tree.
The question relates to the cultivation requirements of Sandalwood ($Santalum$ $album$), which is a root hemi-parasite and requires host plants to thrive during its growth stages.
Step 2: Detailed Explanation:
• Sandalwood is an obligate root parasite. While it performs photosynthesis, it draws water and essential minerals (especially nitrogen and phosphorus) from the roots of neighboring plants using specialized structures called haustoria.
• For successful sandalwood cultivation, a sequence of hosts is required: primary hosts for the nursery/early stage (like $Cajanus$ $cajan$) and secondary/permanent hosts for the field stage.
• Casuarina equisetifolia is considered an excellent permanent host because it is a nitrogen-fixing tree. It produces a dense root system with extensive nodules that provide an abundant supply of nutrients to the sandalwood parasite.
• Research indicates that sandalwood trees grown with nitrogen-fixing hosts like Casuarina or Acacia show significantly better growth rates and heartwood formation compared to those grown with non-leguminous hosts.
• Although $Melia$ $dubia$ and $Tectona$ $grandis$ can occasionally act as hosts, they are not as efficient or widely recommended as Casuarina in commercial sandalwood silviculture.
Step 3: Final Answer:
Casuarina equisetifolia is regarded as an excellent host for the sandalwood tree.
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