High-yield hybrid strains of rice
WebMay 23, 2024 · SHANGHAI — Yuan Longping, a Chinese plant scientist whose breakthroughs in developing high-yield hybrid strains of rice helped to alleviate famine and poverty … WebApr 9, 2024 · The F2 population was evaluated in 1978, and the pedigree method of breeding was followed in the F3 and F4 populations, grown in 1979. The breeding line IR18348-36-3-3 resulted from the bulk harvest of a F 5 family in 1980, and was subsequently evaluated in yield trials in 1981–83 at IRRI, as well as in the Philippine National Trials. It out-yielded …
High-yield hybrid strains of rice
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WebIn order to produce great quantities of hybrid seeds, two kinds of parental lines are needed, a seed parent which is usually male sterile and a pollen parent. ... Both show an increase in … WebApr 12, 2024 · Yu Yahui et al. studied the heterosis between indica-japonica subspecies by using japonica two-line hybrid rice parents and combinations as materials, and concluded that the difference of indica-japonica composition of parents was significantly and high significantly positively correlated with the yield and yield heterosis [29] .
WebSep 1, 2024 · 1. Introduction. The cultivation of hybrid rice is one of the major achievements of modern agricultural science. In 1964, Longping Yuan became the first person to … WebOct 7, 2024 · So far, 117 rice hybrids (36 from public organization and 81 from private sector) were developed, suitable for different ecology and duration ranging from 115 to …
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WebMar 1, 2015 · 2014 was a banner year for Yuan Longping, “the father of hybrid rice”, and his team. The yield of “super rice” hit a new record of 1,026.7 kg per mu (about 15.4 t per ha), which represents an earlier than expected achievement of their target of 1,000 kg per mu. Although born in Beijing, Yuan has lived most of his life in coastal regions ...
WebMay 26, 2024 · Yuan compared domesticated rice to wild varieties and in the early 1970s, he developed the first hybrid rice strain ever created, which produced a 20 percent yield increase using the same amount of land. It was adopted by farmers in China, providing food security for tens of millions more people. how are peanuts madeWebScientists have created hybrid rice that can be propagated with high efficiency as clonal seed. This means the benefits of a high-yield hybrid can be kept from season to season without breeding new hybrids. ... Unless there’s something specifically about rice that would prevent everyone from ending up using the same cloned strain, there’s ... how many milankovitch cycles are thereWebMay 22, 2024 · Hybrid rice recorded a yield about 20 percent higher than that of conventional rice strains. Now its annual accumulated planting area in China has … how are peanuts roasted in shellWebApr 12, 2024 · During the Green Revolution in the 1960s, when machinery replaced manual work and "high-yield variety" seeds were promoted, agricultural output increased dramatically, but a few hybrid rice ... how are peanuts cookedWebJun 1, 2024 · Heterosis, which describes the superior vigor and yield of F 1 hybrids with respect to their parents, is observed in many rice hybrid crosses. The exploitation of heterosis is a great leap in the history of rice breeding. With advances in genomics and genetics, high-resolution mapping and functional identification of heterosis-associated … how many migrant workers are there in qatarWebFeb 12, 2024 · Rice, the staple crop for half the world’s population, is relatively costly to breed as a hybrid for a yield improvement of about 10 percent. This means that the … how are peanuts processed after pickinghttp://en.ce.cn/main/latest/202411/03/t20241103_35967269.shtml how are pearls created by oysters the pearl