Rice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa. Rice is the seed of the grass species Oryza sativa (Asian rice)—or, much less commonly, Oryza glaberrima (African rice).

6 天之前 · Rice, edible starchy cereal grain and the plant by which it is produced. Roughly one-half of the world population, including virtually all of East and Southeast Asia, is wholly dependent upon rice as a staple food; 95 percent of the world’s rice crop is eaten by humans.

Rice is a very flexible/adaptable plant that grows well under both flooded and rainfed conditions. The plant comprises vegetative organs: roots, stems, leaves, and reproductive organs; the latter is the panicle made up of spikelets. Roots: The roots anchor the rice plant in the soil and absorb water and nutrients.

2023年3月6日 · Rice is grown differently than other grains since it is a semi-aquatic plant that requires regular watering throughout the growing season. Heavy clay and silt loam soils, which are frequently unsuitable for other crops, hold a lot of water, making them ideal for rice.

Oryza sativa, having the common name Asian cultivated rice, [2] is the much more common of the two rice species cultivated as a cereal, the other species being O. glaberrima, African rice. It was first domesticated in the Yangtze River basin in China 13,500 to 8,200 years ago. [3][4][5][6]

2015年3月16日 · Rice is a food crop that is included as an important part of a meal across the world. It belongs to the "Poaceae" family and is cultivated as an agricultural crop with an annual yield of about 535 million tons. This article describes the rice plant in detail.

Rice is an annual plant, harvested after one growing season, and can reach a height of between 1 and 1.8 m (3.3– 5.9 ft) depending on the variety. Rice is grown in four ecosystems, which are broadly defined based on water regimes. The ecosystems are irrigated rain-fed lowland and upland, and flood-prone.

Rice (Oryza sativa) is normally an annual, monocot plant, belonging to the Poaceae (Gramineae) family. We grow the grass species Oryza in order to collect the seeds (rice) for edible use.

2024年11月21日 · Rice plants thrive in moist, well-drained soil, and require abundant water throughout their growth cycle. Farmers commonly grow rice in two main methods: upland cultivation and paddy cultivation. In upland cultivation, rice is grown on dry land with less water availability, relying solely on rainfall.

2024年8月31日 · Rice is a plant of the family of the wheat or oats that can get to reach up to 1.8 ms of height. Like them, on the inside, it presents a stem in the form of a hollow cane, except for the knots. The leaves are lanceolate, with tapered endings and parallel venation.