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    Question

    Which breeding technique involves crossing in isolation

    a number of lines tested for their general combining ability (GCA)?
    A Introduction Correct Answer Incorrect Answer
    B Population improvement Correct Answer Incorrect Answer
    C Synthetic varieties Correct Answer Incorrect Answer
    D Heterosis breeding Correct Answer Incorrect Answer

    Solution

    Synthetic varieties are produced by crossing in isolation a number of lines tested for their general combining ability (GCA).

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