Question:
Identify the white rust resistant Brassica variety
Identify the white rust resistant Brassica variety
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Pusa swarnim is also known as Karan rai.
Always associate "swarnim" (golden) with mustard and its defense against white rust.
Always associate "swarnim" (golden) with mustard and its defense against white rust.
Updated On: Jul 22, 2026
- Pusa gaurav
- Pusa Sawani
- Pusa swarnim
- Pusa komal
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
The question asks us to identify the specific cultivar of Brassica (mustard/rapeseed) that has been selectively bred to exhibit resistance against white rust disease.
Step 2: Key Concepts and Approach:
Plant breeding programs develop disease-resistant crop varieties to improve yields and minimize chemical fungicide applications.
We refer to standard agricultural records detailing crop cultivars and their corresponding pest and pathogen resistances.
Step 3: Detailed Explanation:
• Pusa swarnim (Karan rai): This is a specialized variety of Brassica developed through hybridization and selection.
It exhibits robust resistance to white rust, a disease caused by the oomycete pathogen Albugo candida. Thus, this is the correct variety.
• Pusa gaurav: This is a Brassica variety bred for resistance to insect pests, specifically aphids, rather than fungal pathogens.
• Pusa Sawani: This is a variety of Okra (Abelmoschus esculentus / Bhindi) bred for resistance to shoot and fruit borer insects.
• Pusa komal: This is a variety of Cowpea developed for resistance to bacterial blight disease.
Step 4: Final Answer:
The Brassica variety resistant to white rust is Pusa swarnim.
The question asks us to identify the specific cultivar of Brassica (mustard/rapeseed) that has been selectively bred to exhibit resistance against white rust disease.
Step 2: Key Concepts and Approach:
Plant breeding programs develop disease-resistant crop varieties to improve yields and minimize chemical fungicide applications.
We refer to standard agricultural records detailing crop cultivars and their corresponding pest and pathogen resistances.
Step 3: Detailed Explanation:
• Pusa swarnim (Karan rai): This is a specialized variety of Brassica developed through hybridization and selection.
It exhibits robust resistance to white rust, a disease caused by the oomycete pathogen Albugo candida. Thus, this is the correct variety.
• Pusa gaurav: This is a Brassica variety bred for resistance to insect pests, specifically aphids, rather than fungal pathogens.
• Pusa Sawani: This is a variety of Okra (Abelmoschus esculentus / Bhindi) bred for resistance to shoot and fruit borer insects.
• Pusa komal: This is a variety of Cowpea developed for resistance to bacterial blight disease.
Step 4: Final Answer:
The Brassica variety resistant to white rust is Pusa swarnim.
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