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Hybrid Rice. Hybrid rice is a type of Asian rice that has been crossbred from two very different parent varieties. [1] 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. [2]
It was thus difficult to produce hybrid rice in large quantities. In 1961 he spotted a seed-head of wild hybrid rice. [12] By 1964, Yuan hypothesized that naturally-mutated male-sterile rice could exist and could be used for the creation of new hybrid rice varieties. He and a student spent the summer searching for male sterile rice plants.
Rice can come in many shapes, colours and sizes. This is a list of rice cultivars, also known as rice varieties.There are several species of grain called rice. [1] Asian rice (Oryza sativa) is most widely known and most widely grown, with two major subspecies (indica and japonica) and over 40,000 varieties. [2]
Yuan Longping of China's National Hybrid Rice Research and Development Center set a world record for rice yield in 1999 at 17.1 metric tons per hectare (7.6 short tons per acre) on a demonstration plot. This employed specially developed hybrid rice and the System of Rice Intensification (SRI), an innovation in rice farming. [38]
By cross-breeding together IR8 with 13 parent varieties from six nations, Dr. Khush developed IR36, a semi-dwarf variety that proved highly resistant to a number of the major insect pests and diseases that raised farmers' rice yields and drove down prices of the staple food for Asian families. [1]
RiceTec marketed its first commercial hybrid rice line in 2000, with the introduction of the Hybrid XL6, followed shortly by XL7 and XL8 in 2002. [7] RiceTec introduced its first Newpath Herbicide resistant rice (in a partnership with BASF) known as Clearfield XL8 in 2003.
Ebrahimali Abubacker Siddiq (born 1937) is an Indian agricultural scientist, whose research in genetics and plant breeding is reported to have assisted in the development of various high-yielding rice varieties such as dwarf basmati and hybrid rice. [1] The government of India honoured Siddiq in 2011 with the fourth-highest civilian award of ...
New Rice for Africa (NERICA) is a cultivar group of interspecific hybrid rice developed by the Africa Rice Center to improve the yield of African rice cultivars. Although 240 million people in West Africa rely on rice as the primary source of food energy and protein in their diet, the majority of this rice is imported.