The effect of daily light period on flowering is called

It is known that some varieties of wheat are sown in autumn but are harvested around next mid-summer.
$(A)$ What could be the probable reason for this?
$(B)$ What term is used for this promotion of flowering under low temperature?
$(C)$ Which plant hormone can replace the cold treatment?

Explain the role of light in flowering.

Which of the following pairs is mismatched?

The phenomenon where flowering is dependent on exposure to low temperatures is known as:

In which plant was the importance of day length for flowering first observed?