Question

in grafting, great care must be used to match the ______ layer of the scion and rootstock.

a. cambium

b. outside

c. bark

d. woody

Explanation:

In plant grafting, the cambium layer is crucial for successful grafting as it is the meristematic tissue responsible for secondary growth. Matching the cambium layers of the scion (the part to be grafted) and rootstock (the plant onto which the scion is grafted) allows for the formation of new vascular tissue, enabling the scion to receive nutrients and water from the rootstock. The other options (outside, bark, woody) are not the key layer for grafting success.

Answer:

a. cambium