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Giant embryo rice enters the laboratory breeding stage; blood pressure-lowering rice is expected to reach the market
Red rice with anti-atherosclerosis properties and giant embryo rice with blood pressure-lowering functions have entered the laboratory breeding stage and are expected to reach people's dining tables in the near future. This is the news the reporter obtained yesterday at the opening ceremony of the "2007 Shanghai Science and Technology to the Countryside" series of service activities. It is reported that "high-protein rice breeding," undertaken by the Plant Molecular Genetics Laboratory of Shanghai Normal University, has been listed as a key project of the Shanghai Municipal Science and Technology Commission. According to Professor Li Jianyue of Shanghai Normal University, the project leader, cultivating high-protein rice is of great significance in many respects.
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National rice gene breeding platform established with Shanghai taking the lead
According to the latest news released by the Shanghai Academy of Agricultural Sciences, a nationwide rice gene resource and molecular technology breeding platform, established with the lead of units including the Shanghai Agricultural Biological Gene Center, has achieved sharing across society, has mapped a large number of genes related to rice yield, grain quality, stress resistance and other traits, and has bred multiple new rice varieties and new combinations. According to relevant personnel from the Shanghai Academy of Agricultural Sciences, the main goals of current rice variety improvement are to further increase yield potential, improve quality and enhance stress resistance. The history of rice research shows that breakthrough
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What are the latest rice breeding technologies? A full analysis of the world's cutting-edge methods
Research on salt-tolerant rice breeding The aims of this research are: 1. To enable new salt-tolerant rice to adapt to cultivation in saline-alkali land. 2. To make full use of seawater irrigation when freshwater is scarce. Abroad, there have been reports of salt-tolerant crops such as tomato, melon and barley. Salt-tolerant rice bred by the University of Sussex in the UK can grow vigorously in the field, but the complexity of regulating salt content in the field must be recognized. Research on genetic engineering of salt-tolerant rice is quite active in the UK. Researchers insert genes from salt-tolerant rice into rice,
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Rice gene design breeding: scientists cultivate new varieties
The aroma of rice is richer, like fruit, with higher iron and zinc content, so there is no need to supplement other nutrients; all of this can be achieved through molecular design of rice genes. Recently, the author learned from the "Crop Molecular Design and Innovation" symposium that China is currently building a large bioinformatics infrastructure platform to ensure that high-quality genes are "hit every time." Zhu Yingguo, an academician of the Chinese Academy of Engineering, said that taking rice as an example, japonica rice with a soft and glutinous texture is more favored, and people also hope that rice aroma will be richer or have special aromas such as "fruity" notes. Moreover,
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Rice cancer has met its nemesis: breeding of a disease-resistant new variety succeeds
Since the beginning of this century, rice stripe virus disease has continued to break out over large areas, in severe cases even causing rice farmers to lose their entire harvest. Rice stripe virus disease has been regarded as the "cancer" of rice. "Wuyujing 3", long recognized by the market as the main rice variety with the best taste and quality in Jiangsu Province and surrounding areas, has seen its planting area plummet in recent years because it is highly susceptible to rice stripe virus disease. Some stripe virus-resistant varieties either have shortcomings in yield and yield stability, or have not been fully recognized by the market for their rice quality. Rice farmers
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Giant embryo rice enters the breeding method stage, blood pressure-lowering rice expected to reach the market
Red rice with anti-atherosclerosis properties and giant embryo rice with blood pressure-lowering functions have entered the laboratory breeding stage and are expected to reach people's dining tables in the near future. This is the news the reporter obtained yesterday at the opening ceremony of the "2007 Shanghai Science and Technology to the Countryside" series of service activities. It is reported that "high-protein rice breeding," undertaken by the Plant Molecular Genetics Laboratory of Shanghai Normal University, has been listed as a key project of the Municipal Science and Technology Commission. According to project leader Professor Li Jianyue of Shanghai Normal University, cultivating high-protein rice is of great significance in many respects.
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Giant embryo rice has entered the laboratory breeding stage
Red rice with anti-atherosclerosis properties and giant embryo rice with blood pressure-lowering functions have entered the laboratory breeding stage and are expected to reach consumers' dining tables in the near future. The "high-protein rice breeding" project undertaken by the Plant Molecular Genetics Laboratory of Shanghai Normal University has been listed as a key project of the Shanghai Municipal Science and Technology Commission. Red rice is a natural colored rice that has anti-atherosclerosis properties and can enhance the body's antioxidant capacity. It is rich in bioactive substances such as carotene, flavonoids and alkaloids, as well as mineral elements including iron, zinc and calcium. Scientific researchers have combined high-protein
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Breeding and Cultivation Points of the High-Starch Potato Variety Qingshu No. 2
The new high-starch potato variety Qingshu No. 2 was bred by the Crop Institute of the Qinghai Academy of Agriculture and Forestry Sciences. This variety is a late-maturing variety with a growth period of about 120 days, good agronomic traits, strong growth vigor, strong disease resistance, and excellent quality; its starch content is 22.86%-25.83%, which is 7-10 percentage points higher than the average value of the 77 nationally approved varieties (15.05%), and its Vc content is 20.92mg/100g; it tastes good and has a high yield level, with an average yield of 3000kg per mu and a maximum yield of 4192kg per mu; it has wide adaptability
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Guangxi Takes the Lead in Breeding an Aromatic Red Rice CMS Line
Recently, the Science and Technology Department of Guangxi Autonomous Region organized relevant experts to conduct a field technical appraisal of the wild-abortive type CMS line Betel Nut Red A, bred by the Xiangzhou Huang Family Rice Research Institute. After rigorous field investigation and indoor microscopic examination, and after hearing the breeder's technical report and questions and answers, the expert group determined that Betel Nut Red A meets the standards for a rice CMS line. It is the first aromatic red rice CMS line bred in China, with strong innovation. Betel Nut Red A has stable agronomic traits, stable male sterility, good flowering habits, relatively good grain quality, and a resistance level of highly susceptible.
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Application of Anther Culture Technology in Rice Breeding
Using disease-resistant plants from the first backcross generation for anther culture can transfer disease-resistance genes into japonica rice in a short time, accelerating the process of disease-resistant breeding in japonica rice. Zhejiang Agricultural University began making crosses in 1975. An anther culture was carried out in 1976, and by 1977 stable varieties resistant to rice blast and bacterial leaf blight, such as Dan 209, had been developed. The whole process took only 3 years, and resistance genes for two diseases were transferred at the same time; its breeding speed and efficiency greatly exceeded the conventional research methods of Japanese scholars. This study also explored the approach of applying the anther culture method in seed production to produce foundation seed. Tests showed that pure lines from anther culture had a certain effect of purification and rejuvenation compared with foundation seed produced by the "three-plot method." Anther-cultured disease-resistant varieties have now been used as resistance sources for late japonica rice.
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