A) pure-line selection
B) mass selection
C) mutation breeding
D) None of the above
Correct Answer: B
Solution :
Mass selection is the simple, easy and most common method of crop improvement. In this method, large number of plants with desirable characters are selected from mixed population of crop in the field. Pure-line selection is common method to improve self-pollinated plants. Pure-line variety is obtained from single self-fertilized homozygous plant. Mutation breeding is the improvement of crops by changing the genotype of plants through mutations. Mutation is a sudden, heritable and stable change in the genotype of an organism.
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