[Campbell Biology P.885] According to the text, what is the primary purpose of grafting grap... | Practice Question

According to the text, what is the primary purpose of grafting grape scions onto different rootstocks?

  • A: To allow the rootstock's genes to determine the quality of the fruit.
  • B: To make the grapes more resistant to certain soil pathogens.
  • C: To accelerate the formation of callus between the scion and stock.
  • D: To prevent the propagation of weakly pathogenic viruses from the scion.

Explanation

The first paragraph of the text on grafting explicitly states that grapes are grafted onto rootstocks that 'are more resistant to certain soil pathogens.' This is presented as the reason for choosing different rootstocks, even if they produce 'inferior grapes' themselves.