How do you genetically engineer frost protection for plants?

Question

How do you genetically engineer frost protection for plants?

Answer 1

One method used is to transform genes for the production of anti-freeze proteins from fish and insects to plants. These proteins protect against cell damage in freezing and near-freezing temperatures by inhibiting the growth of ice crystals.

Answer 2

either breed the plants in colder and colder environments or

find a plant that lives in a cold environment, findout what is it that lets the plant exist in the cold (some molecule), extract that, find the sequence for it, then implant the gene in the plant you have

basically

Answer 3

For instance you could increase the natural production of glycerol...an adaptation than many insects use to prevent freezing in winter.