Super rice cultivation in China ranks first in the world

On August 25, 2006, the Taoyuan Rice Super High Yield Science and Technology Demonstration Yard in Yongsheng County of Yunnan Province reported another great news. The 11 You 4886 Super Rice, which was selected by the well-known expert of hybrid rice breeding and breeding of Liu Wenbing, was well-known inside and outside the province. The peer-researched experts strictly accepted the site acceptance inspection of 1.161 mu and calculated that 11 superior 4866 mu yields of super rice were as high as 1229.7 kg, which broke the self-selected super rice 11 You 28 and received a field production of 1.15 mu per mu in 2005. The new record of 1229.97 kilograms of world rice yield also set a new record for the world rice production of the 1.97 acres of 1219.7 kilograms of the super-rice 11 You 6 that he had selected in the field in 2004.
So far, Liu Wenping, a researcher, has supervised the selection of three superior rice varieties, 11 You 4886, 11 You 28, and 11 You 6. He collaborated closely with Yang Gaoqun, a top agronomist of the Lijiang Institute of Agricultural Sciences in Yunnan Province, to work together to tackle the problem. For three consecutive years, the historical breakthrough in the rice world yields more than 1 mu per mu for a yield of more than 1200 kg. These three super rices were hosted by the well-known expert on hybrid rice breeding and seed production in China and the country’s outstanding expert Liu Wenbing. They were undertaken by the Institute of Fine Seed Biochemistry in Youxi County, Fujian Province, and the major and key scientific and technological breakthroughs issued by the Science and Technology Department of Fujian Province. The project has adopted four major engineering systems, namely "key breeding techniques for super rice breeding, key supporting technologies for super rice cultivation, selection of suitable regions and fields suitable for super rice, world records, and key complementary technical systems for super rice", and has achieved major scientific research results. . This indicates that the research and application of super rice in China continues to maintain the international leading level and reflects the huge potential for grain production in China.

On August 25, 2006, the Ministry of Science and Technology of Fujian Province and the Fujian Provincial Development and Reform Commission invited the China Rice Research Institute, Yunnan Agricultural University, Yunnan Academy of Agricultural Sciences, the Yunnan Agricultural Bureau Seed Station, Fujian Academy of Agricultural Sciences and other units. The expert group carried out on-the-spot inspection and acceptance of the "super rice high-yield key high-yield key cultivation technology research project" implemented by the Institute of Fine Seed Biochemistry in Youxi County, Fujian Province, and it has been completely cut and threshed, lifted, and weighed Total production and field area were measured, and 1 kg wet grain was dried and weighted. The moisture content was measured by a double-drying method using a steam-flow type II moisture analyzer. The water content was calculated according to the standard of 13.5% water content in indica rice. Dry grain production results are as follows: Super rice II You 4886 super high-yielding demonstration field acceptance area of ​​1.161 acres, total production of wetland total yield of 1615.15 kg. Weigh 1 kg of wet grain sample and determine the moisture content was 18.8% after double drying experiments. According to the standard of 13.5% moisture content of indica rice, the drying rate was 93.8% and the impurity content was 2%. The dry rate is 91.99%. From this, it is calculated that the average grain yield of II You 4866 is 1279.7 kg.

Super rice II You 4886 is based on the large-grained, high-internal-crossing rate II-32A sterile line used as the female parent, and its high combining ability, strong restoring ability, wide adaptability, and excellent quality of rice excellent restorer line 4886 as the parent In the mating group, the super rice ideal plant with high canopy, spikelet layer, medium and large panicles, and lodging resistance is characterized by short and thick stem stalks, erect canopy leaves, strong tillering rate, and spike rate. It has high spike height, large spikes, strong disease resistance, good ripening period, high seed setting rate, and large potential for yield increase.

On September 10, 2005, the Department of Science and Technology of Fujian Province and the Fujian Provincial Development and Reform Commission invited the China National Rice Research Institute, Yunnan Agricultural University, Yunnan Academy of Agricultural Sciences, Yunnan Province Agricultural Bureau Seed Department, Baoshan City Seed Company, Yunnan Province and Fujian Academy of Agricultural Sciences. Experts and other authorities formed an acceptance team to conduct field inspections and acceptance of super rice II You 25 under the supervision of researcher Liu Wenbing at Taoyuan Township, Taoyuan Township, Yongsheng County, Lijiang City, Yunnan Province. 1.15 mu, with an average yield of 1,229.97 kilograms per mu, refreshing the world record of rice yield of 1219.9 kilograms per mu created by II You No. 6.

Super rice II You 28 was developed from the combination of the II-32A sterile line and the self-selected restorer line 1728. The super rice ideal plant leaf and panicle type had "high canopy, spikelet layer, medium and large panicles, and high lodging resistance." The combination of thick stalks, large spikes and large grains, flag leaves and inverted trifoliate upright tile, not covered with leaves, with good ventilation and light conditions, high seed setting rate, more effective ear adaptability, good late color, Rice has good quality, resistance and comprehensive traits, and it has great potential for yield increase. It is of great significance for ensuring food security, improving farmers' grain production efficiency, and promoting agricultural efficiency.

On September 15, 2004, Fujian Science and Technology Department and Fujian Provincial Department of Agriculture invited China Rice Research Institute, Yunnan Agricultural University, Yunnan Academy of Agricultural Sciences, Yunnan Province Seed Branch and Anhui Province Seed Station, and Fujian Provincial Academy of Agricultural Sciences to be composed of authoritative experts. In the acceptance group, at the rice super high yield technology demonstration field in Taoyuan Township, Yongsheng County, Yunnan Province, a full-scale field acceptance inspection was carried out for Super Rice II You 6. The actual acceptance area was 1.07 mu, and the wet grain yield was 1,330.57 kg. (Excluding impurities) After determining the moisture content by drying and moisture meter, calculate the total dry grain output according to the standard of 13.5% moisture content in the indica rice valley, and convert the dried grain yield per mu to 1219.9 kg, creating a new crop of rice for the first time in the world. Record.

Super rice II You 6 is a super rice with II-32A sterile line as a female parent and a self-selected restorer line of Philippine No. 6 as a male parent. It is a basic nutrient-type medium-late late-maturing and high-yielding combination with spikes. Large grain, high yield, good adaptability, comprehensive traits, great potential for yield increase, rice quality is superior to Shanyou 63, scientific cultivation generally yields 650 to 750 kilograms per mu, and high-yielding cultivation can reach 800 kilograms. This combination has participated in the trial of the late-maturity and high-yield group in the middle and lower reaches of the Yangtze River in the country. It has been tested in Sichuan, Hunan, and in provinces such as Yunnan, Anhui, Hubei, and Guangxi. In 2005, it passed the regional certification of crop varieties in Fujian Province (Qingdao Rice 2005G01).

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