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The Feekes scale is a system to identify the growth and development of cereal crops introduced by the Dutch agronomists Willem Feekes (1907-1979) in 1941. [ 1 ] [ 2 ] This scale is more widely used in the United States [ 3 ] than other similar and more descriptive [ 4 ] [ 5 ] scales such as the Zadoks scale or the BBCH scale .
Classification into spring wheat versus winter wheat is common and traditionally refers to the season during which the crop is grown. For winter wheat, the physiological stage of heading (when the ear first emerges) is delayed until the plant experiences vernalization , a period of 30 to 60 days of cold winter temperatures (0 to 5 °C; 32 to 41 ...
Winter wheat at the end of March. Winter cereals, also called winter grains, fall cereals, fall grains, or autumn-sown grains, are biennial cereal crops sown in the autumn.They germinate before winter comes, may partially grow during mild winters or simply persevere under a sufficiently thick snow cover to continue their life cycle in spring.
The Magruder Plots are experimental winter wheat field plots at Oklahoma State University established in 1892. They are the third longest-running such field trial in the United States, following the Morrow Plots established in 1876 at the University of Illinois at Urbana–Champaign (on corn), and the Sanborn Field established in 1888 at the University of Missouri (on grain crops and forage).
U.S. plantings of winter wheat, used for bread and cookies, totaled 36.7 million acres for the 2023 harvest, a 21% expansion from a 111-year low in 2020. Over the last few years farmers have ...
The exported wheat varieties are hard red winter, white wheat (about 66%), Hard Red Spring (about 50%), Soft Red Winter, and durum wheat. However, the producers continue to increase exports as in the domestic market wheat products have not been competitive in recent years. [14]
The incoming Trump administration is preparing a list of countries to which it may deport migrants when their home countries refuse to accept them, according to three sources familiar with the plans.
Winter wheat lies dormant during a winter freeze. It needs to develop to a height of 10 to 15 cm before the cold intervenes, so as to be able to survive the winter; it requires a period with the temperature at or near freezing, its dormancy then being broken by the thaw or rise in temperature. Spring wheat does not undergo dormancy.