What type of wheat is largely grown to the north of Tropic of Cancer in India?
Autumn wheat
Spring wheat
Winter wheat
Macaroni wheat
Some varieties of wheat are known as spring wheat while others are called winter wheat. Former variety is sown and planted in spring and is harvested by the end of the same reason. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?