Rice is a cereal grain, and in its domesticated form is the staple food for over half of the world's human population, particularly in Asia and Africa, due to the vast amount of soil that is able to grow rice. Rice is the seed of the grass species Oryza sativa or, much less commonly, O. glaberrima. Asian rice was domesticated in China some 13,500 to 8,200 years ago, while African rice was domesticated in Africa some 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 polycultures such as rice-duck farming, and modern integrated pest management seek to control damage from pests in a sustainable way.
The International Rice Research Institute (IRRI) is an international agricultural research and training organization with its headquarters in Los Baños, Laguna, in the Philippines, and offices in seventeen countries. IRRI is known for its work in developing rice varieties that contributed to the Green Revolution in the 1960s which preempted the famine in Asia.
CGIAR is a global partnership that unites international organizations engaged in research about food security. CGIAR research aims to reduce rural poverty, increase food security, improve human health and nutrition, and sustainable management of natural resources.
Germplasm are genetic resources such as seeds, tissues, and DNA sequences that are maintained for the purpose of animal and plant breeding, conservation efforts, agriculture, and other research uses. These resources may take the form of seed collections stored in seed banks, trees growing in nurseries, animal breeding lines maintained in animal breeding programs or gene banks. Germplasm collections can range from collections of wild species to elite, domesticated breeding lines that have undergone extensive human selection. Germplasm collection is important for the maintenance of biological diversity, food security, and conservation efforts.
Semi-dwarf IR36 is a hybrid rice variety developed by Gurdev Khush.
Colin Louis Avern Leakey was a leading plant scientist in the United Kingdom, a Fellow of King's College, Cambridge and of the Institute of Biology, and a world authority on beans.
Hybrid rice is a type of Asian rice that has been crossbred from two very different parent varieties. As with other types of hybrids, hybrid rice typically displays heterosis or "hybrid vigor", so when grown under the same conditions as comparable purebred rice varieties, it can produce up to 30% more yield. To produce hybrid seeds in large quantity, a purebred sterile rice variety is fertilized with fertile pollen from a different variety. High-yield crops, including hybrid rice, are one of the most important tools for combatting worldwide food crises.
Biofortification is the idea of breeding crops to increase their nutritional value. This can be done either through conventional selective breeding, or through genetic engineering. Biofortification differs from ordinary fortification because it focuses on making plant foods more nutritious as the plants are growing, rather than having nutrients added to the foods when they are being processed. This is an important improvement on ordinary fortification when it comes to providing nutrients for the rural poor, who rarely have access to commercially fortified foods. As such, biofortification is seen as an upcoming strategy for dealing with deficiencies of micronutrients in low and middle-income countries. In the case of iron, the WHO estimated that biofortification could help cure the 2 billion people suffering from iron deficiency-induced anemia.
Upland rice is a variety of rice grown on dry soil rather than flooded rice paddies.
Perennial rice are varieties of long-lived rice that are capable of regrowing season after season without reseeding; they are being developed by plant geneticists at several institutions. Although these varieties are genetically distinct and will be adapted for different climates and cropping systems, their lifespan is so different from other kinds of rice that they are collectively called perennial rice. Perennial rice—like many other perennial plants—can spread by horizontal stems below or just above the surface of the soil but they also reproduce sexually by producing flowers, pollen and seeds. As with any other grain crop, it is the seeds that are harvested and eaten by humans.
Te-Tzu Chang or T. T. Chang was a prominent Chinese agricultural and environmental scientist.
The Irrigated Rice Research Consortium (IRRC) focuses on agricultural research and extension in irrigated rice-based ecosystems. In partnership with national agricultural research and extension systems (NARES) and the private sector, the IRRC provides a platform for the dissemination and adoption of natural resource management (NRM) technologies in Asian countries. The IRRC is currently active in 11 countries: Bangladesh, Cambodia, China, India, Indonesia, Laos, Myanmar, the Philippines, Sri Lanka, Thailand, and Vietnam. It aims to strengthen NARES-driven interdisciplinary research, link research and extension, facilitate rice farmers' uptake of technological innovations, and enable environmentally sound rice production to expand to feed growing populations.
Molecular breeding is the application of molecular biology tools, often in plant breeding and animal breeding. In the broad sense, molecular breeding can be defined as the use of genetic manipulation performed at the level of DNA to improve traits of interest in plants and animals, and it may also include genetic engineering or gene manipulation, molecular marker-assisted selection, and genomic selection. More often, however, molecular breeding implies molecular marker-assisted breeding (MAB) and is defined as the application of molecular biotechnologies, specifically molecular markers, in combination with linkage maps and genomics, to alter and improve plant or animal traits on the basis of genotypic assays.
Regional Agricultural Research Station, Pattambi is a research Station under the Central Zone of Kerala Agricultural University at Pattambi in Palakkad district of Kerala, India.
The Indian Institute of Spices Research (IISR) is an autonomous organisation engaged in agricultural research related to spices in India. The institute has its headquarters in Moozhikkal, Silver Hills, Kozhikode, Kerala and is a subsidiary of Indian Council of Agricultural Research (ICAR), New Delhi, under the Ministry of Agriculture, India.
The Central Soil Salinity Research Institute (CSSRI) is an autonomous institute of higher learning, established under the umbrella of Indian Council of Agricultural Research (ICAR) by the Ministry of Agriculture, Government of India for advanced research in the field of soil sciences. The institute is located on Kachawa Road in Karnal, in the state of Haryana, 125 km (78 mi) from the Indian capital of New Delhi.
Sant Singh Virmani is a US-based Indian plant breeder, rice scientist and a former Principal Scientist at the International Rice Research Institute (IRRI). He served IRRI from 1979 to 2005 and retired from its service as the deputy head of the Plant Breeding, Genetics and Biochemistry Division.
Dilbagh Singh Athwal was an Indian-American geneticist, plant breeder and agriculturist, known to have conducted pioneering research in plant breeding. He was a professor and the Head of the Department of Plant Breeding at Punjab Agricultural University and an associate of Norman Borlaug, a renowned biologist and Nobel Laureate, with whom he has collaborated for the introduction of high-yielding dwarf varieties of wheat.
Plant genetic resources describe the variability within plants that comes from human and natural selection over millennia. Their intrinsic value mainly concerns agricultural crops.
Stephen Kresovich is a plant geneticist and the Coker Endowed Chair of Genetics in the Department of Plant and Environmental Sciences at Clemson University and professor in the School of Integrative Plant Science in the College of Agriculture and Life Sciences at Cornell University. Since 2019 he has served as director of the Feed the Future Innovation Lab for Crop Improvement.
