缩放出视频：新鲜绿色草坪在黑色背景下的黑土上加速生长。延时摄影。4K。

t Video of Accelerated Growth of Fresh New Green Grass on the Dark Earthen Ground against black background. Timelapse. 4K. Wheat germination and growing time lapse. Wheat is a grass widely cultivated for its seed, a cereal grain which is a worldwide staple food. The many species of wheat together make up the genus Triticum; the most widely grown is common wheat. The archaeological record suggests that wheat was first cultivated in the regions of the Fertile Crescent around 9600 BCE. Botanically, the wheat kernel is a type of fruit called a caryopsis. Wheat is an important source of carbohydrates. Globally, it is the leading source of vegetable protein in human food, having a protein content of about 13%, which is relatively high compared to other major cereals[12] but relatively low in protein quality for supplying essential amino acids. When eaten as the whole grain, wheat is a source of multiple nutrients and dietary fiber.