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    In leucerne, resistance to spotted aphid is associated with:
    Question

    In leucerne, resistance to spotted aphid is associated with:

    A.

    Low sinigrin in leaves

    B.

    High silica content in leaves

    C.

    High saponin in leaves

    D.

    None of these

    Correct option is C


    Resistance to spotted alfalfa aphid in leucerne is linked with high saponin content in leaves, which acts as a natural deterrent. Correct answer: (c).

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