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 —or, much less commonly, Oryza glaberrima. Asian rice was domesticated in China some 13,500 to 8,200 years ago; African rice was domesticated in Africa about 3,000 years ago. Rice has become commonplace in many cultures worldwide; in 2021, 787 million tons were produced, placing it fourth after sugarcane, maize, and wheat. Only some 8% of rice is traded internationally. China, India, and Indonesia are the largest consumers of rice. A substantial amount of the rice produced in developing nations is lost after harvest through factors such as poor transport and storage. Rice yields can be reduced by pests including insects, rodents, and birds, as well as by weeds, and by diseases such as rice blast. Traditional rice polycultures such as rice-duck farming, and modern integrated pest management seek to control damage from pests in a sustainable way.
The Hani or Ho people are a Lolo-speaking ethnic group in Southern China and Northern Laos and Vietnam. They form one of the 56 officially recognized nationalities of the People's Republic of China and one of the 54 officially recognized ethnic groups of Vietnam. In Laos, the Hani are more commonly known as Ho.
The Mekong Delta, also known as the Western Region or South-western region, is the region in southwestern Vietnam where the Mekong River approaches and empties into the sea through a network of distributaries. The Mekong delta region encompasses a large portion of south-western Vietnam of over 40,500 km2 (15,600 sq mi). The size of the area covered by water depends on the season. Its wet coastal geography makes it an important source of agriculture and aquaculture for the country.
The Miao are a group of linguistically related peoples living in Southern China and Southeast Asia, who are recognized by the government of China as one of the 56 official ethnic groups. The Miao live primarily in the mountains of southern China. Their homeland encompasses the provinces of Guizhou, Yunnan, Sichuan, Hubei, Hunan, Guangxi, Guangdong, and Hainan. Some sub-groups of the Miao, most notably the Hmong people, have migrated out of China into Southeast Asia. Following the communist takeover of Laos in 1975, a large group of Hmong refugees resettled in several Western nations, mainly in the United States, France, and Australia.
Chu was an ancient Chinese state during the Zhou dynasty. Their first ruler was King Wu of Chu in the early 8th century BC. Chu was located in the south of the Zhou heartland and lasted during the Spring and Autumn period. At the end of the Warring States period it was destroyed by the Qin in 223 BC during the Qin's wars of unification.
The brown planthopper (BPH), Nilaparvata lugens (Stål) is a planthopper species that feeds on rice plants. These insects are among the most important pests of rice, which is the major staple crop for about half the world's population. They damage rice directly through feeding and also by transmitting two viruses, rice ragged stunt virus and rice grassy stunt virus. Up to 60% yield loss is common in susceptible rice cultivars attacked by the insect. The BPH is distributed throughout Australia, Bangladesh, Bhutan, Burma (Myanmar), Cambodia, China, Fiji, India, Indonesia, Japan, North and South Korea, Laos, Malaysia, India, Nepal, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Taiwan, Thailand, and Vietnam. Their alternative host plant other than rice is Leersia hexandra.
Delphacidae is a family of planthoppers containing about 2000 species, distributed worldwide. Delphacids are separated from other "hoppers" by the prominent spur on the tibia of the hindleg.
Rice black-streaked dwarf virus (RBSDV) is a plant pathogenic virus of the family Reoviridae, causing diseases in rice and maize, causing significant crop losses in East Asian countries.
Rice grassy stunt virus (RGSV) is a plant pathogenic virus transmitted by the brown planthopper, Nilaparvata lugens, and two other Nilaparvata species, N. bakeri and N. muiri.
In the course of the peopling of the World by Homo sapiens, East Asia was reached about 50,000 years ago. The "recent African origin" lineage of 70 kya diverged into identifiable East Eurasian and West Eurasian lineages by about 50 kya. This early East Asian lineage diverged further during the Last Glacial Maximum, contributing outgoing from Mainland Southeast Asia significantly to the peopling of the Americas via Beringia about 25 kya. After the last ice age China became cut off from neighboring island groups. The previous phenotypes of early East Asians became either replaced or prevailed among more geographically distant groups.
Tai peoples are the populations who speak the Tai languages. There are a total of about 93 million people of Tai ancestry worldwide, with the largest ethnic groups being Dai, Thais, Isan, Tai Yai (Shan),Tai Lai (Shanni), Lao, Tai Ahom, Tai Meitei and Northern Thai peoples.
Micraspis discolor is a species of ladybird. It was described by Johan Christian Fabricius in 1798. It is widespread throughout Asia, North America and parts of Oceania.
General and I is a 2017 Chinese television series based on Feng Nong's novel A Lonesome Fragrance Waiting to be Appreciated. Directed by Ju Jueliang and written by Zhang Yongchen, the series stars Wallace Chung, Angelababy, Sun Yizhou and Gan Tingting. General and I aired on Hunan Television from 2 January to 10 February 2017.
Sogatella is a genus of delphacid planthoppers in the family Delphacidae. There are more than 20 described species in Sogatella.
This article summarizes the genetic makeup and population history of East Asian peoples and their connection to genetically related populations such as Southeast Asians and North Asians, as well as Oceanians, and partly, Central Asians, South Asians, and Native Americans. They are collectively referred to as "East Eurasians" in population genomics.
The Xiangxiang dialect is a dialect of Xiang Chinese, spoken in Xiangxiang, Hunan province, China. It is part of a group of dialects called the Central Xiang dialects.
Longan witches broom-associated virus is a species of positive-sense single-stranded RNA virus that has not been assigned to a genus within the family Potyviridae. It is thought to be the cause of witch's broom in longan, a large tropical tree from southeastern Asia of economic value. Longan witches broom disease is a condition that was first described in 1941. The virus was found in symptomatic plants and absent in healthy plants, but not all of Koch's postulates have been fulfilled.
The economy of the nineteenth-century period of the Nguyễn dynasty was primarily agricultural. Ninety-five percent of the national economy depended on agriculture. Fragile Mining and handicraft were the only industry sectors in the country before the 1870s. International trade and business were heavily restricted by the Confucian-minded bureaucratic state. Contact with the outside world and modernisation efforts were kept constraining.
Rice polyculture is the cultivation of rice and another crop simultaneously on the same land. The practice exploits the mutual benefit between rice and organisms such as fish and ducks: the rice supports pests which serve as food for the fish and ducks, while the animals' excrement serves as fertilizer for the rice. The result is an additional crop, with reduced need for inputs of fertilizer and pesticides. In addition, the reduction of pests such as mosquito larvae and snails may reduce mosquito-borne diseases such as malaria and dengue fever, and snail-born parasites such as the trematodes which cause schistosomiasis. The reduction in chemical inputs may reduce environmental harms caused by their release into the environment. The increased biodiversity may reduce methane emissions from rice fields.
Southern rice black-streaked dwarf virus (SRBSDV) is a plant pathogenic virus of the family Sedoreoviridae, causing diseases in rice and maize, resulting in significant crop losses in Southern Asian countries. It is a member of the genus Fijivirus. It is not to be confused with the Rice black-streaked dwarf virus, as this virus does not contain the same insect vectors, and is an entirely separate virus. The sole transmitter of SRBSDV is Sogatella furcifera, aka the "white-backed planthopper" (WBPH). Close relative to the Laodelphax striatellus, which transmits the RBSD virus.
