Anatomy of Flowering PlantsHard

Question

For union between stock and scion in grafting which one is the first to occur ?

Options

A.Pormation of callus
B.Production of plasmodesmata
C.Differentiation of new vascular tissue
D.Regeneration of cortex and epidermis

Solution

In grafting, cambium bearing shoot ( = scion )of one plant is joined to cambium bearing stump (root system = stock) of related plant through different union like tongue grfting, wedge grafting, etc. The union of scion and stock leads to irregular, unorgenized and undifferentiated mass of actively dividing cells known as callus.

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