Jul 03, 2016 · What is one reason the hybrid rice was beneficial during the Gene Revolution? Increased income to seed producers Increased income to seed producers What best describes the amount of increase of rice production in China due to the Gene Revolution? 12% -14% 12 % - 14 % What is a negative aspect of the Gene Revolution? Create superweeds /superbugs
Jul 24, 2019 · What is one reason the hybrid rice was beneficial during the Gene Revolution? Increased dependency on land production Increased housing development Increased income to seed producers Expensive cost of rice seeds
Because hybrid rice can outyield other varieties of rice, it is a key technology that meets the increasing global demand for rice. In the 1970s, China’s hybrid rice breeding program averted an impending famine. Today, hybrid rice closes yield gaps …
The high susceptibility of hybrid rice to disease is likely to foster further dependence on agrochemicals. 35 In this sense, hybrid rice presents a tremendous opportunity for pesticide companies, which are reeling from market saturation in the North and anxious to expand sales in Asia. For similar reasons, it creates new markets for their proprietary genes.
Hybrid rice is not about feeding people. First, most people don’t even want to eat the rice because it tastes bad. Second, it will only exacerbate problems of distribution and poverty by favoring wealthy farmers. And finally, hybridisation is a very inefficient and limited way to increase supply. As pointed out by one hybrid rice proponent, Dr. Durga B Chaudhary of Plantek, Inc., "Hybrid technology, as such, addresses our concern for food security [only] very modestly."73 Beneath the rhetoric, the real motivation behind the development of hybrid rice is to create a rice seed industry as a motor for the deeper industrialization of rice farming. The point is hammered home by Romualdas G. Vildzius of Brigada Berde, an NGO funded by Shell oil company in the Philippines: "That really to us is the major incentive – to gently, slowly bring [the farmers] around to a more corporate farming viewpoint."74
Hybrid rice was introduced commercially in China in 1976. Today, it grows on approximately 50 percent of China's total rice area, or 15-16 million hectares. The conquest of hybrid rice is a source of immense pride for many Chinese authorities. Recent reports even suggest that China’s "father of hybrid rice", scientist Yuan Long Ping, has developed one variety that yields 17 tonnes per hectare. 9
1. DRIVING FORCES. Rice breeding has been the affair of farmers in Asia for thousands of years. In the process of collecting, selecting, exchanging, conserving and experimenting with rice plants, they have come up with well over 100,000 varieties with different characteristics.
The next generation (F2) will normally not perform as well. The CMS system is known as the three-line system since it requires three lines of rice: a CMS line , a maintainer line , and a restorer line. This system is what is being used in every country working on hybrid rice at present.
In China, where hybrid rice comprises about 50% of rice lands, there has been a 46-fold reduction in local varieties being grown over the last 40 years. 27. A more subtle means of genetic erosion is likely to occur as the private sector takes over the role of the public sector in developing new materials.
PGMS lines are sterile lines that regain fertility with daylight fluctuations. Therefore, they can only be used in temperate zones. TGMS lines regain fertility when the temperature fluctuates, which means they can be used in the highlands of the tropics.
Currently, 16 seed companies are producing hybrid in the country, using eight hybrid lines. Hybrid rice is grown principally in Andhra Pradesh, Karnataka and Tamil Nadu.
Rice is a major cereal crop for China.
The authors acknowledge support from the Ministry of Science and Technology of China (Grant Nos. 2009AA101201 and 2011AA10A107 ), Hunan Province Government (Grant No. 2009fj1012 ), Guangdong Province Government (Grant No. 201001S0104725509 ), and Shenzhen Municipal Government (Grant Nos.
Chinese scientist Yuan Longping (1930–2021), renowned as the "Father of Hybrid Rice", is the most famous researchers on hybrid rice.
Jump to navigation Jump to search. 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, ...
A 2010 study published by the International Rice Research Institute (IRRI), reports that the profitability of hybrid rice in three Indian states varied from being equally profitable as other rice to 34% more profitable.
The use of heterosis in first-generation hybrid (F1) seeds is well known, but in those cases the F1 seeds are only produced in small quantity. The first academic paper on the application of heterosis to rice production was published in 1926, but its application in rice production was limited because of the self-pollinating nature of rice.