Wheat
**1. Wheat Description and Characteristics:**
– Wheat is a grass cultivated for its seed, with common species being T. aestivum.
– Archaeological records suggest wheat cultivation dates back to around 9600 BC.
– Wheat is grown on 220.7 million hectares globally, with a production of 771 million tonnes in 2021.
– It is a stout grass with medium to tall height, long narrow leaves, wind-pollinated flowers, and deep roots.
**2. Wheat Nutrition and Health Aspects:**
– Wheat is a leading source of vegetable proteins, containing about 13% protein and dietary fiber.
– Gluten in wheat can trigger certain conditions in some individuals.
– It is a source of carbohydrates, essential amino acids, and minerals like manganese, phosphorus, and zinc.
– Wheat gluten can lead to coeliac disease, gluten sensitivity, and other related conditions.
**3. History and Domestication of Wheat:**
– Wheat was initially harvested by hunter-gatherers in West Asia, with domestication starting around 21,000 BC.
– Wild einkorn and emmer wheat were domesticated, leading to larger grains and non-shattering heads.
– Wheat spread to various regions, impacting diets and economies globally.
– Different forms of wheat, including common wheat, spelt, durum, emmer, and Khorasan, developed through hybridization and polyploidy.
**4. Wheat Production and Consumption Worldwide:**
– Top wheat producers in 2021 were China, India, and Russia.
– Russia, the US, Canada, and France were the largest wheat exporters in 2019.
– Indonesia, Egypt, and Turkey were the largest importers in 2019.
– Wheat is grown on 220.7 million hectares globally, with trade exceeding all other crops combined.
**5. Agronomy and Cultivation of Wheat:**
– Wheat is an annual crop planted in autumn or spring, requiring specific soil, mineral content, and rainfall.
– Farmers use fertilizers, irrigation, and pesticides in wheat cultivation.
– Harvesting involves reaping and threshing with combine harvesters, followed by drying for safe storage.
– Technological advances, crop development understanding, and farming techniques have significantly enhanced wheat cultivation and productivity.