Question:
Which of the following weeds is a holo root-parasite?
Which of the following weeds is a holo root-parasite?
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Parasitic weeds:
- Holo root-parasite: Orobanche (complete dependence).
- Hemiparasite: Striga (partial dependence).
- Stem parasite: Cuscuta, Loranthus.
- Holo root-parasite: Orobanche (complete dependence).
- Hemiparasite: Striga (partial dependence).
- Stem parasite: Cuscuta, Loranthus.
Updated On: Aug 27, 2026
- Loranthus
- Striga
- Orobanche
- Cuscuta
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of parasitic weeds and their types.
Step 2: Detailed Explanation:
Orobanche (broomrape) is a holo root-parasite (obligate root parasite).
It completely depends on the host for nutrition.
Loranthus (A): Stem parasite (hemiparasite).
Striga (B): Root parasite (hemiparasite).
Cuscuta (D): Stem parasite (holoparasite).
Thus, Orobanche is a holo root-parasite.
Step 3: Final Answer:
Thus, the holo root-parasite is Orobanche, which corresponds to option (C).
[0.5cm]
This question tests knowledge of parasitic weeds and their types.
Step 2: Detailed Explanation:
Orobanche (broomrape) is a holo root-parasite (obligate root parasite).
It completely depends on the host for nutrition.
Loranthus (A): Stem parasite (hemiparasite).
Striga (B): Root parasite (hemiparasite).
Cuscuta (D): Stem parasite (holoparasite).
Thus, Orobanche is a holo root-parasite.
Step 3: Final Answer:
Thus, the holo root-parasite is Orobanche, which corresponds to option (C).
[0.5cm]
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