Intensive crop farming HYVs is that they were developed as F1 hybrids, meaning they need to be purchased by a farmer every season rather than saved from previous seasons, thus increasing a farmer’s cost of production. Wheat is a grass that is cultivated worldwide. Globally, it is the most important human food grain and ranks second in total production as a cereal crop behind maize; the third being rice. Wheat and barley were the first cereals known to have been domesticated. Cultivation and repeated harvesting and sowing of the grains of wild grasses led to the domestication of wheat through selection of mutant
Cereal growth staging scales Cereal growth staging scales Cereal growth staging scales attempt to objectively measure the growth of cereals. In agronomy, the "BBCH-scale for cereals"' describes the phenological development of cereals using the BBCH-scale. The phenological growth stages and BBCH-identification keys of cereals are: with stages 21 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. This scale is more widely used in the United States than other similar and more descriptive scales such as the Zadoks scale or the BBCH scale. Like other scales of crop