The main difference between Wheat and Rye is that the Wheat is a cereal grain and Rye is a species of plant
Wheat is a grass widely cultivated for its seed, a cereal grain which is a worldwide staple food. The many species of wheat together make up the genus Triticum; the most widely grown is common wheat (T. aestivum).
The archaeological record suggests that wheat was first cultivated in the regions of the Fertile Crescent around 9600 BCE. Botanically, the wheat kernel is a type of fruit called a caryopsis.
Wheat is grown on more land area than any other food crop (220.4 million hectares, 2014). World trade in wheat is greater than for all other crops combined. In 2016, world production of wheat was 749 million tonnes, making it the second most-produced cereal after maize. Since 1960, world production of wheat and other grain crops has tripled and is expected to grow further through the middle of the 21st century. Global demand for wheat is increasing due to the unique viscoelastic and adhesive properties of gluten proteins, which facilitate the production of processed foods, whose consumption is increasing as a result of the worldwide industrialization process and the westernization of the diet.Wheat is an important source of carbohydrates. Globally, it is the leading source of vegetal protein in human food, having a protein content of about 13%, which is relatively high compared to other major cereals but relatively low in protein quality for supplying essential amino acids. When eaten as the whole grain, wheat is a source of multiple nutrients and dietary fiber.In a small part of the general population, gluten – the major part of wheat protein – can trigger coeliac disease, noncoeliac gluten sensitivity, gluten ataxia, and dermatitis herpetiformis.
Rye (Secale cereale) is a grass grown extensively as a grain, a cover crop and a forage crop. It is a member of the wheat tribe (Triticeae) and is closely related to barley (genus Hordeum) and wheat (Triticum). Rye grain is used for flour, bread, beer, crisp bread, some whiskeys, some vodkas, and animal fodder. It can also be eaten whole, either as boiled rye berries or by being rolled, similar to rolled oats.
Rye is a cereal grain and should not be confused with ryegrass, which is used for lawns, pasture, and hay for livestock.
Any of several cereal grains, of the genus Triticum, that yields flour as used in bakery.
A light brown colour, like that of wheat.
Wheaten, of a light brown colour, like that of wheat.
A grain used extensively in Europe for making bread, beer, and (now generally) for animal fodder. from 8th c.
The grass Secale cereale from which the grain is obtained. from 14th c.
Rye bread. from 19th c.
Rye whiskey. from 19th c.
Caraway (from the mistaken assumption that the whole seeds, often used to season rye bread, are the rye itself)
Ryegrass, any of the species of Lolium.
A disease of hawks.
a cereal which is the most important kind grown in temperate countries, the grain of which is ground to make flour for bread, pasta, pastry, etc.
the grain of wheat.