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Sonalika and Kalyan Sona, introduced in 1963, are high-yielding varieties of:

AMaize
BBajra
CWheat
DRice
Answer & Solution
Correct answer: C. Wheat
1. They were also disease resistant. 2. Both are wheat varieties. 3. They spread across the wheat belt. _Source: syllabus Biology, Chapter 9, Strategies for Enhancement in Food Production._
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