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Characteristics and High-Yield Cultivation Techniques of the Premium New Japonica Rice Variety Jiudao 53
The new japonica rice variety Jiudao 53 was developed by the Jilin City Academy of Agricultural Sciences through sexual hybridization using Jiudao 14 as the female parent and Heixiangzhan as the male parent, combining early-generation simultaneous identification of grain quality and resistance with shuttle breeding, and bred by the pedigree method. It was approved by the National Crop Variety Approval Committee in 2005 (approval number: Guoshen Dao 2005049). After years of trials and demonstrations, this variety has shown characteristics of a moderate growth period, excellent grain quality, strong resistance, good adaptability and outstanding yield stability. In 2005 in Jilin Province
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Yesizhan: Main Agronomic Traits and High-Yield Cultivation Techniques of a High-Quality Conventional Rice
Yesizhan is a temperature-sensitive, early- and late-season dual-purpose, high-quality, high-yield variety bred by the Foshan Institute of Agricultural Sciences through sexual hybridization of Xiyepzhan 10 and Zhong'er Ruanzhan, and was approved by the Crop Variety Approval Committee of Guangdong Province in March 2005. Its main agronomic traits and high-yield cultivation techniques are introduced as follows: 1 Main agronomic traits. Yesizhan is early to mid-early maturing in the early season, with an average full growth period of 127 days; it is early maturing in the late season, with an average full growth period of 108 days. The plant is short and sturdy, with strong tillering ability, green leaf color, narrow and upright leaves, and the capacity to hold many panicles, with large panicles and dense grains, and good grain filling
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Characteristics and High-Yield Cultivation Techniques of the Premium Japonica Rice Variety III You 98
III You 98 is a new premium hybrid japonica rice combination developed through cooperation between the Anhui Academy of Agricultural Sciences, China National Seed Group Corporation and Japan's Mitsui & Co., Ltd., using the A23 sterile line and the R-18 restorer line. It passed the approval of the Anhui Provincial Crop Variety Committee in August 2002. In 2004, under the unified arrangements of the China National Seed Group Corporation Lianyungang Experimental Station and the Lianyungang City Seed Station, we introduced this combination and conducted comparative trial demonstrations with varieties such as 3 You 18, Xudao 3, Yandao 8 and Lianjiajing 1. Through
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Detailed Explanation of Key Techniques for Super-High-Yield Cultivation of Double-Season Rice in South China
(1) Sow at the right time and cultivate strong seedlings. For early rice, use dry-raised seedlings, with a seeding rate generally of 90 g/m2 and a sowing period in mid-to-late March; for late rice, use sparse sowing for strong seedlings or two-stage seedling raising, with a seed rate of about 1.0 kg per mu. (2) Ridge and bed cultivation. Bed width 3-4 m, ditch width 0.2-0.25 m, and open surrounding ditches well to facilitate water management and field operation management. (3) Wide-row close planting. The planting density is 30-40 hills/sq m, with a row spacing of about 25 cm. Generally, early rice has 3-4 seedlings per hill, and late rice is transplanted as single seedlings or double seedlings, ensuring
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Breeding and High-Yield Cultivation Techniques of the Rice Variety Lindao 12
1 Breeding history: In 1999, the Linyi City Rice Research Institute used radiation mutation breeding, treating 500 g of Yujing 6 seeds with 60Co alpha-rays at a dose of 40,000 roentgens, and planted the Mo generation that year; the population showed high sterility, and all seeds (M1 generation) were harvested in autumn; in the winter of the same year, winter multiplication in the south was carried out to add a generation, planting the M1 generation, and the population showed high segregation, and all M2 generation seeds were harvested. In 2000, the quartering bulk breeding method was used, planting the M2 generation, and in autumn superior plants were selected from the mutant population.
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Characteristics and High-Yield Cultivation Techniques of the Rice Variety Jindao 8
The new rice variety Jindao 8 (i.e. 970006) is a conventional japonica rice variety developed by the Institute of Crop Genetics, Shanxi Academy of Agricultural Sciences, through sexual hybridization using Jindao 3 (i.e. 810323) as the female parent and 79-227 as the male parent, followed by continuous years of selfing and directional selection. It was approved by the Shanxi Provincial Crop Variety Approval Committee in 2004. In 2005, it passed national approval (approval number Guoshendao 2005044). 1 Characteristics 1.1 Botanical characteristics Jindao 8, seedlings
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High-Yield Cultivation Techniques for the Tianjin Hybrid Japonica Rice 10 You 18
10 You 18 is a three-line hybrid medium japonica combination bred by the Tianjin Rice Research Institute by crossing the self-developed male sterile line 10A with the self-developed restorer line R148. This combination performed outstandingly in the 2000 Tianjin main-season hybrid japonica rice new combination screening, and was then named Jin You 9603. From 2001 to 2003, it completed the national regional trial in the Yu Japonica 6 group, and in 2004 passed national variety approval, being named 10 You 18. In large-scale planting, 10 You 18 has shown the characteristics of good high and stable yield, excellent grain quality, strong disease and stress resistance, and suit
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Key Points of High-Yield Cultivation Techniques for Upland Rice Gaoshan No. 1
Upland rice Gaoshan No. 1 was bred from a wild upland rice that grows in the Dupangling area on the border of Hunan and Guangxi. Because this wild upland rice has long grown under harsh natural environmental conditions, it has strong resistance to pests, diseases and weeds, and is also tolerant of poor soil and drought, with a particularly well-developed root system. The Gaoshan No. 1 variety is suitable for both paddy and upland cultivation. In 2000, it was trial-planted in Tancheng County, Shandong Province and Wencheng County, Zhejiang Province, with the highest yield reaching 9750 kg/hectare and an average yield of 7687.5 kg/hectare, an increase over local hybrid rice
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Detailed Explanation of Key Points for High-Yield Cultivation Techniques of Guodao 6 Rice
Guodao 6 is a new high-yield, high-quality single-season rice variety bred by Dr. Cheng Shihua, Director of the China National Rice Research Institute, and breeding expert Cao Liyong using molecular marker technology. Guodao 6 has a whole growth period of about 140 days, with advantages including a well-developed root system, relatively fast tillering, broad and upright leaves, thick and sturdy stems, large panicles, heavy grains, high yield, and excellent grain quality, making it suitable for promotion and planting in our city. Key points of cultivation techniques: 1. Timely sowing: Locally, it is suitable to sow from May 25-28. Before sowing, soak seeds with "Xianjunqing" for disinfection
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What are the precautions for releasing brood shrimp in rice-shrimp rotation
Currently it is the golden time for releasing brood shrimp. When releasing brood shrimp, farmers should pay attention to the following points: 1. Do a good job of basic rice field renovation, mainly by digging the surrounding ditches well, reinforcing the embankments, building the inlet and drainage systems well, and setting up anti-escape facilities. 2. Do a good job of disinfecting the surrounding ditches, preferably by spreading quicklime evenly, with a dosage of 100 jin per mu, and release the brood shrimp one week later. 3. Select good brood shrimp and release them reasonably. The brood shrimp to be released should be sexually mature, healthy, and have complete appendages, and should be released at a female-to-male ratio of 3:1. Release brood shrimp per mu
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