The term ‘Genetics of Disaster” by Harlan... | Seed Science & Technology | Agrigyan

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ICAR JRF Seed Science And Technology 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

The term ‘Genetics of Disaster” by Harlan refers to

Breeding of narrow genetic base cultivars and their wide cultivation Correct Breeding of broad genetic base cultivars and their wide adaptation Development of transgenics in food crops Development of Bt cotton

"Genetics of Disaster": Concept coined by Jack R. Harlan in 1972 warning against the extreme genetic vulnerability arising from modern industrial agriculture.
Definition: Refers to breeding and cultivating genetically uniform cultivars with a narrow genetic base across vast contiguous monocultures (such as the Southern Corn Leaf Blight epidemic of 1970 due to T-cytoplasm, and the Irish Potato Famine). (Correct answer: Option 1)

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