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New hybrid indica rice combination K You 818: high yield, good quality and disease resistance
K You 818 is a new hybrid indica rice combination with high yield, good quality and disease resistance, bred by the Institute of Agricultural Sciences of the Lixiahe Region of Jiangsu, and produced and distributed exclusively by Nanjing Shenzhou Seed Industry Co., Ltd. This variety has applied for national new variety protection and patent, with the announcement number: CNA000548E. It passed the Jiangsu provincial approval in 2001, and in the same year entered the national southern rice region high-yield group regional trial, with a yield of 660 kg per mu, ranking first among the tested combinations. In 2002, it exceptionally entered the national southern rice region production trial, with a yield increase of 10.65% per mu compared with the control, ranking first, making it
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Breeding and Application of Tianfengyou 269, a High-Yield, High-Quality, Multi-Resistant Hybrid Indica Rice
1 Breeding Process Tianfengyou 269 (formerly named Yanyou 269) is a new high-yield, high-quality, multi-resistant three-line hybrid indica rice combination bred in 2002 by the Institute of Agricultural Sciences of the Coastal Region of Jiangsu, by crossing Tianfeng A, developed by the Guangdong Academy of Agricultural Sciences, with the restorer line Yanhui 269, which was self-bred by our institute. The self-bred restorer line Yanhui 269 was produced in the summer of 1995 by making a cross with Yanhui 559 as the female parent and Yanhui 469 (an intermediate material of our institute) as the male parent, obtaining 26 hybrid seeds, which were brought to Sanya, Hainan in the winter of the same year for planting
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Super-high-yield new hybrid japonica rice variety Qiuyou Jinfeng successfully bred
The super-high-yield new hybrid japonica rice variety "Qiuyou Jinfeng", independently bred by Shanghai scientists, after 3 years of production demonstration planting, reached a per-mu yield of 801.9 kg, and has recently passed expert acceptance inspection. On December 31, 2006, a reporter learned at the Shanghai Minhang District Agricultural Science Research Institute that the cultivation of the excellent variety "Qiuyou Jinfeng" uses the genetic differences between the two parents of indica rice and japonica rice, with an excellent late japonica sterile line as the female parent, and selects excellent indica rice and excellent japonica rice restorer lines as the male parent, through "indica-japonica bridging" technology, applying
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What to do when greenhouse cucumbers wilt and die, affecting yield?
Wilting causing dead plants and affecting yield: greenhouse cucumber wilting methods and countermeasures
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Key points of high-yield cultivation techniques for propagating honeysuckle (Japanese honeysuckle) by cuttings
The flower buds, flowers and leaves of honeysuckle can all be used as medicine, to clear heat and reduce inflammation; the vine is used as medicine to treat rheumatic bone pain; the flowers can be used to extract aromatic oil and to make honeysuckle distillate; it is also a tree species for landscaping and garden cultivation and ornamental viewing. 1. Honeysuckle cutting propagation. Honeysuckle can be propagated by seed, and can also be propagated by cuttings and root division, but seed propagation grows slowly and returns late, and the propagation coefficient of root division is low, so at present all production uses cutting propagation, which has abundant propagation material, a high survival rate and a quick return. The specific methods are further divided into two types: direct cutting and nursery cutting.
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Key Technical Points for Large-Scale Cultivation of Licorice with High Quality and High Yield
Field Management 1. Intertillage and weeding: After the seedlings emerge completely, intertillage and weeding should be carried out promptly so that there are no weeds in the field. For ridge planting, three hoeings and three ridgings can be done; for bed planting, weeds on the bed surface should be pulled out. This is the key to high quality and high yield. Where conditions permit, closed weeding can be carried out after sowing and before seedling emergence, using Douhuanglong (20% chlorimuron-ethyl) wettable powder 2 bags/mu mixed with acetochlor 2-4 bottles/mu and sprayed over the field. After seedling emergence, herbicides killing monocotyledonous plants can be sprayed to eliminate weeds.
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Key Management Techniques for Fast-Growing, High-Yield Shiitake Mushrooms
In fast-growing, high-yield shiitake mushroom production, the supporting management techniques are crucial and directly affect the yield and quality of the mushrooms. 1. Management during the spawn-running stage: Move the inoculated spawn bags to the culture room, control the room temperature at around 25°C, and keep the relative humidity below 75%. During the spawn-running period, the heat released by mycelial respiration makes the temperature inside the bags 2-4°C higher than outside. During this period, attention must be paid to preventing excessively high temperatures; especially in the middle and late stages, the room temperature should not exceed 25°C. After 15-20 days, when the mycelium grows to a colony circle
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Upland rice variety Taixuan No. 1 yields a steady 1,000 jin
Upland rice Taixuan No. 1 is a new upland rice line jointly bred by researchers from the Huang-Huai-Hai Upland Rice Research Center of the Ministry of Agriculture and the scientific and technical staff of Jinan Huinong Seed Industry Co., Ltd. in Shandong Province, through 4 consecutive years of careful selection from the upland rice variety Thailand Desert No. 3. Trials and demonstrations at demonstration bases in Jiangsu, Shandong, Henan, Anhui and other provinces proved that its yield per mu reached 500 kg to 600 kg, with the highest yield per mu reaching more than 700 kg. Characteristics: The whole growth period of Taixuan No. 1 is 100 days to 120 days, with thick and sturdy stems and strong tillering ability
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Zhengmai 975 is a high-yield, high-quality noodle-type wheat variety.
Variety origin: Zhengmai 975 is a new high-quality noodle-type wheat variety most recently bred by the Fengyou Breeding Room of the Wheat Research Institute of the Henan Academy of Agricultural Sciences, and it passed the approval of the Henan Provincial Crop Variety Approval Committee in August 2001. Yield results: in the two-year provincial high-fertility spring-water group regional trial, the average yield per mu increased by 6.09% compared with the large-scale production control variety Yumai 18 in Henan Province, and its yield ranked first in Jiaozuo, Xuchang, Zhoukou and other places. Trial plantings and seed propagation in various places have shown that it has relatively high yield potential and good adaptability. For example, in 1999 Yuanyang County
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Harvesting wheat at the late dough stage gives both high quality and high yield
In recent years, researchers have studied the grain-filling rate of several wheat varieties, and the 1000-grain weight reaches its maximum at the late dough stage of wheat. If harvesting begins 3 days after this, the 1000-grain weight decreases by an average of 0.3-9.4 grams per day, while if harvesting begins on the 4th-5th day, the 1000-grain weight decreases by an average of 1-1.2 grams per day. If calculated at 350,000-400,000 ears per mu and 35 grains per ear, for every 1 gram decrease in 1000-grain weight, the yield per mu drops by 13-15 kg. Studies show that harvesting wheat at the late dough stage is most suitable, because during the milk-ripening stage, the stems and leaves
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