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    Question

    Which among the following factors is/are not essential

    for commercial exploitation of heterosis?
    A Heterosis of 40% and above is considered significant in most of the crops. Correct Answer Incorrect Answer
    B There should be high percentage of selfing and low percentage of outcrossing Correct Answer Incorrect Answer
    C The floral biology should permit large production of hybrid seed Correct Answer Incorrect Answer
    D Availability of male sterility (MS) and self incompatibility (SI) systems Correct Answer Incorrect Answer
    E Both B and C Correct Answer Incorrect Answer

    Solution

    Option B is incorrect as there should be high percentage of outcrossing. This is essential for good seed setting.

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