November 29, 2021

Corn or corn or corn is one of the important grains. It originated in the Americas, and after wheat, most of the world's agricultural land is occupied by corn. Corn is rich in nutrients needed by the body and is also a good source of fiber and is rich in calories.


Corn was not known as a crop in Asia, Europe, and Africa until 1492 (the year the United States was discovered). But the plant has been known in Central America for centuries and was cultivated by Native Americans. The name of this plant in Arabic is corn and cob. In Dehkhoda culture, the Persian name of this plant in the Khorasani and Persian dialects of Afghanistan is "Javari", but its Arabic word, corn, is also used. A certain culture has introduced "corn" as equal to "corn" and "cob".

Structure and physiology

Corn stalks are similar in appearance to bamboo stalks, and the internodes typically reach 17 inches. Corn has a limited growth form, and the lower leaves are broad sword leaves that are generally 100–50 cm long and 10–5 cm wide (4–2 feet by 2–4 inches). The stems are erect, 2–3 m (10–7 ft) high, and have numerous nodes, usually with large leaves. Under these leaves and just near the stem, ears are formed. They grow 3 mm daily. The ears are female inflorescences that are tightly covered with several layers of leaves so that they do not easily show themselves until the appearance of pale yellow filaments that protrude from the end of the ear. These strands are elongated stigmas that look like a bunch of hair and are first green and then yellow or red. Cultivation to silage forage is usually done more densely, and eventually a lower percentage of cob and more plant material is obtained. Certain varieties of corn have been modified to produce many more ears. These are the source of baby corn, which is used as a vegetable in Asian cuisine. Maize is an optional long-night plant, and its flowering occurs after receiving a certain number of degrees (temperature day) at a temperature of more than 10 degrees in an adapted environment. The effect of long nights on the number of days it takes for corn to flower is genetically controlled and regulated by the phytochrome system. Photoperiodism is not common in tropical cultivars, as the feature of long days of higher yields makes plants very tall.

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