Blanching is mostly practiced in which of the following crop?

The fruit of cauliflower is known as curd.
Blanching is the simple practice of binding large outer leaves up over and around developing cauliflower curd and tie them with a twine or rubber band.
Blanching is done to protect the curds from yellowing due to direct exposure to the sun and to arrest enzymatic activity.
Blanching is done for getting quality curd. 
Pusa himjyoti and Pusa snowball have a self-blanched habit.