alleryAtomita-2, a rice variety able to tolerate saline soils, was produced by which breeding method?
AMutation breeding
BPolyploidy breeding
CMass selection
DIntroduction of new varieties
Answer & Solution
Correct answer: A. Mutation breeding
1. Rice normally grows in alluvial soil, but a salt-tolerant variety was needed.
2. Atomita-2, with saline tolerance and pest resistance, is listed among achievements of mutation breeding.
3. Polyploidy breeding gave seedless watermelons and Triticale, not Atomita-2, so option B is a trap.
4. Hence the answer is A.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Breeding and Biotechnology", p.297_
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