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    Question

    If for a rice variety, grain yield is 3.2t/ha and straw

    yield is 4.8t/ha, then the value of harvest index is ____
    A 30% Correct Answer Incorrect Answer
    B 68% Correct Answer Incorrect Answer
    C 40% Correct Answer Incorrect Answer
    D 55% Correct Answer Incorrect Answer

    Solution

    HI = Economic Yield/ Biological yield * 100 = 3.2/

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