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    Question

    ____ is the grafting done on old established trees to

    upgrade seedling plantations of inferior varieties.
    A Top working Correct Answer Incorrect Answer
    B Double working Correct Answer Incorrect Answer
    C Inarching Correct Answer Incorrect Answer
    D Smudging Correct Answer Incorrect Answer

    Solution

    Top-working is the name for grafting established trees to another variety. The existing tree, the "stock", is cut back, leaving just one or two limbs (nurse limbs) to supply the tree with energy. Short sticks of 1-year-old wood of the new variety (the scions) are inserted (grafted) into the cut surface.

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