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New water dropwort variety successfully bred in Hubei
The new water dropwort variety "Eshuiqin No. 1", bred by the Wuhan Vegetable Research Institute (postcode: 430065, tel: 027-88116313), recently passed variety certification in Hubei Province. The variety has a plant height of 45-50 cm, 5.0-5.5 leaves per plant, strong adaptability, a crisp texture and a strong aroma. Every 1 kg of fresh product contains 82.04 mg of vitamin C and 0.93 g of crude fiber. The yield per 667 sq m (1 mu) reaches 3200-37
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These respiratory diseases in chickens need to be carefully differentiated
No matter which respiratory disease occurs, it is difficult to determine from the clinical symptoms and the performance of the flock which respiratory disease is present, which brings certain difficulties to diagnosis. To help everyone make a preliminary diagnosis on site, various respiratory diseases and common frequently occurring diseases with respiratory disease symptoms are introduced as follows: Chicken chronic respiratory disease. This disease is a respiratory disease caused by Mycoplasma gallisepticum. Mycoplasma widely exists in the chicken body, and it can be said that in commercial laying hen flocks of various breeds
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New upland rice variety developed in Shandong, agronomist Xu Defang successfully breeds it
In the golden autumn season, a new upland rice variety carefully cultivated over 3 years by Xu Defang, an agronomist at the Dongying Branch of the Shandong Academy of Agricultural Sciences, has achieved a bumper harvest. According to calculations, it yields more than double that of the current upland rice variety 297, with a yield of 600-650 kg per mu, marking a breakthrough in China's upland rice breeding. Xu Defang used more than 30 ancestral lines provided by Professor Li Zichao of China Agricultural University, discovered a dwarf-stalk mutant line from the tall-stalk line 33-1, and from it selected a group of 9 lines, namely early-maturing, glutinous, early
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Introduction to the 127 variety of Xiangli pear that can be fully peeled
The 127 pear fruit is gourd-shaped, ripening around September 10. The skin is yellow with a red blush on the sun-facing side. The single fruit weighs 50-80 grams, with a maximum of 150 grams. When first ripe, it is of the crisp-sweet type and can be kept for 30-40 days, after which it becomes soft and fragrant. Not only can the skin be peeled off completely, but not a drop of pear juice drips. The flesh is delicate, with no stone cells, sweet and sour and pleasant, with a strong aroma. Its quality surpasses that of large and small Xiangshui pears and Qiuxiang pears, and it has been nicknamed "Peel-off Fragrance." Today, as consumers increasingly worry about pesticide residues on fruit skins, its production and sales
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Hybrid late japonica rice restorer lines successfully bred in the Yangtze River Basin
Through the efforts of experts from the Shanghai Academy of Agricultural Sciences, the "Yangtze River Basin hybrid late japonica rice restorer lines - Shenhui 254 and Shenhui No. 1" were successfully bred and utilized. This project was awarded first prize for scientific and technological progress by the Shanghai Municipal Government this year. The key to applying hybrid late japonica rice in production in the Yangtze River Basin is to breed excellent late japonica-type restorer lines. This project used intermediate materials between indica and japonica subspecies as bridge parents, introduced indica restorer genes into late japonica rice varieties, adopted convergent crossing and systematic selection, and gathered the excellent base
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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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New cotton variety Chuangyoumian 168 successfully bred in Hebei
The new transgenic insect-resistant cotton variety "Chuangyoumian 168", bred by Shijiazhuang Shiminfeng Seed Co., Ltd. (postal code: 050035, tel: 0311-85322590), recently passed variety approval in Henan Province. The variety has a growth period of about 127 days. Single boll weight 6.7 grams, lint percentage 40.5%, seed index 10.9 grams, pre-frost boll opening rate 90.2%. Highly resistant to fusarium wilt, tolerant to verticillium wilt, and resistant to lepidopteran pests such as cotton bollworm and pink bollworm. Specific strength 28.6 centinewtons/tex, micronaire value 5.4,
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New cotton variety successfully bred in Gansu
The new cotton variety "Jiumian No. 6", bred by the Jiuquan City Institute of Agricultural Sciences (postal code: 735000, tel: 0937-2621195), recently passed variety approval in Gansu Province. This variety is an early-maturing upland cotton, with round bolls, a single boll weight of 6.2 grams, thin boll shells, and smooth and concentrated boll opening; the cotton lint is pure white and easy to pick. The seed index is 11.1 grams, the whole growth period is 145 days, and the pre-frost cotton rate is 81.7%. It is resistant to fusarium wilt, with a specific strength of 27.9 cN/tex, a Micronaire value of 4.3, and a spinning consistency index of 13
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Super hybrid japonica rice successfully bred in Tianjin
In the golden autumn season, the thousand-mu rice fields at the Ninghe Rice Original Seed Farm are a sea of gold, and the super hybrid japonica rice planted here - the high-quality Xiaozhan hybrid japonica rice - has been successfully harvested. This marks major progress in the Tianjin major science and technology project led by Academician Yuan Longping - "Research on New Combinations of High-Quality, Super-High-Yield Xiaozhan Rice." Based on analysis of the number of grains per rice ear and other factors, rice experts expect the yield per mu to reach 800 kg, an increase of more than 150 kg over conventional rice yields, with greatly improved quality. According to reports, the conventional rice varieties currently planted in North China
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Multiple high-yield, multi-resistant, high-quality hybrid japonica rice varieties successfully bred in Tianjin
After several years of research, the Rice Research Institute of the Tianjin Academy of Agricultural Sciences has successfully bred 9 new high-yield, multi-resistant, high-quality hybrid japonica rice varieties. At present, 6 of the new varieties have been designated as nationally approved high-quality hybrid japonica rice varieties, with an annual promotion area of more than 1 million mu, accounting for 20% of the total hybrid japonica rice area in China. It is understood that the Rice Research Institute of the Tianjin Academy of Agricultural Sciences, through independent innovation, successfully solved the worldwide problem of hybrid japonica rice breeding, and was the first in China to establish a hybrid japonica rice breeding technology system and seed production system, raising hybrid seed purity
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