1, cortex, is the outermost layer of wheat, developed from the ovary wall. The cortex is divided into pericarp and seed coat. Pericarp is the outer skin of wheat, and its color varies with varieties, including red, yellow and white. Seed coat is a thin film wrapped around endosperm, which is hard and dark in color.
2. Endosperm is the main part of wheat, occupying most of the volume of wheat. Endosperm develops from fertilized eggs and contains a lot of nutrients, mainly starch and protein. Starch is the main energy source of wheat, and protein is one of the essential nutrients for human body.
3. Embryo is located in the center of wheat, including radicle, embryo, hypocotyl and cotyledon. The germ will develop into stems and leaves in the future, providing nutrients for wheat photosynthesis. The radicle will grow downward and plunge into the soil to absorb water and nutrients; Hypocotyl connects radicle and embryo and plays a supporting role; Cotyledon is a part of germ, which provides energy for the growth of seedlings.
Wheat related content
Wheat is one of the most important food crops in the world, which is of great significance to human life and economic development. Wheat originated in the Middle East. After thousands of years of cultivation and improvement, it has become a widely planted crop all over the world. In China, the planting history of wheat can be traced back to 5000 BC, and now it has become the main food crop in northern China.
2. Wheat has high nutritional value and is rich in protein, fat, carbohydrates, vitamins and minerals. Among them, protein in wheat has high quality and complete amino acid composition, and is known as a high-quality source of protein. In addition, wheat is rich in dietary fiber, which helps to maintain the normal operation of human digestive system.
3. In China, the planting and processing technology of wheat is developing continuously. The application of modern agricultural science and technology such as breeding of high-yield and high-quality wheat varieties, water-saving irrigation technology and pest control. The output of wheat is increased year by year, which meets the needs of the broad masses of people. At the same time, the wheat processing industry is also growing, such as flour, noodles, steamed bread and other foods, which are deeply loved by consumers.