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Four key passes must be secured in controlling rice sheath blight
In recent years, sheath blight has risen to become the most important disease of rice, and it has four major characteristics: First, it occurs over a wide area. Second, there are very few varieties resistant to sheath blight. Third, the degree of damage is increasingly serious, even causing the plants to break through the top and lodge. Fourth, it first develops on the lower part of the rice plants, making it easy to overlook and miss the favorable timing for control. In control strategy, strictly securing the four passes is the key. 1. The pass of salvaging sclerotia - sheath blight mainly overwinters in rice fields in the form of sclerotia, and overwintering sclerotia generally have 60%-70% able to germinate from winter and spring through to early rice transplanting. The vast majority of sclerotia are lighter than water and can float with the water for a long time. After the rice field is irrigated,
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Rice variety Huhan 15 passes national certification
Bred by the Shanghai Agrobiological Gene Center (), it recently passed certification by the National Crop Variety Approval Committee. It is an indica-type conventional upland rice. Grown as a single-season mid-season rice under upland conditions in the lower reaches of the Yangtze River, its average whole growth period is 121.1 days, 10.6 days later maturing than the control Zhonghan 3. It grows uniformly, with vigorous seedling growth, strong tillering ability, a compact plant type, erect leaves, and green culms at yellow ripeness. The effective panicle number is 200,000 panicles per mu, plant height is 103.0 cm, panicle length is 20.7 cm, total grains per panicle are 144.3, seed setting rate is 80.6%, and 1000-grain weight is
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Chongqing Yurong No. 1 Pig Composite Line Successfully Passes Expert Review
The "Yurong No. 1 Pig Composite Line," independently bred by Chongqing, was recently successfully developed and smoothly passed expert review by the National Livestock and Poultry Breed Approval Committee of the Ministry of Agriculture. According to the Chongqing Municipal Science and Technology Commission, the Chongqing Academy of Animal Sciences utilized the excellent characteristics of a superior local pig breed - the Rongchang pig - combined with the advantages of exotic pig breeds, adopted a three-line composite model, and applied new breeding technologies such as conventional selection along with molecular genetics and information technology. After 9 years of arduous research, they bred a composite line pig with excellent meat quality, strong adaptability, good reproductive performance, moderate lean meat percentage, and strong market competitiveness.
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Jigeng 88 super rice passes national certification
Aimed at using science and technology to resolve the contradiction between China's future grain supply and demand, the "Jigeng 88" super rice of the "China Super Rice Research" project, which is included in the Premier's Fund, has achieved a major research breakthrough at the Jilin Academy of Agricultural Sciences and passed national and provincial variety certification. Jigeng 88 is the result of nearly 10 years of dedicated efforts by experts at the Jilin Academy of Agricultural Sciences. It has high yield, good quality, multiple resistance and wide adaptability, with an average yield of 750 kg-800 kg per mu, and its rice quality reaches the national first-grade high-quality rice standard, officially bidding farewell to the northern rice planting problems of low yield and
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What disease does a chicken have if it passes white watery droppings?
Based on your description, it may be pullorum disease. Pullorum disease is an infectious disease caused by Salmonella pullorum. After newly hatched chicks are infected, they show listlessness, sensitivity to cold, drowsiness, refusal to eat, and difficulty breathing. The vent is often blocked by white pasty droppings, making defecation difficult. If not treated promptly, most die within 2 weeks. Chicks that recover become carrier birds. Adult chickens often have latent infection and generally show no clinical symptoms; in hens, only reduced egg laying or no egg laying is seen, the ova are shrunken, and the contents are greasy in appearance, with severe cases turning pale bluish or lead-black, and sometimes yolk peritonitis also occurs;
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High-quality hybrid japonica rice Dianza 80 passes variety certification
The new high-quality hybrid japonica rice variety "Dianza 80", bred by the Yunnan Dian-type Hybrid Rice Research Center and the Gejiu City Seed Company, was approved at the fifth meeting of the fifth Yunnan Provincial Crop Variety Certification Committee. "Dianza 80" has a full growth period of 171 days. Plant height 94.5 cm, panicle length 19.6 cm, total grains per panicle 157 grains, filled grains per panicle 115.2 grains, seed setting rate 72%, 1000-grain weight 25 g; leaves erect at seedling stage, tolerant to fertilizer, uniform growth; flag leaf erect, compact plant type, strong till
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New japonica rice variety Zhengdao 18 passes national approval, combining high yield, disease resistance and good quality
Zhengdao 18 is a new japonica rice variety with high yield, disease resistance and wide adaptability, bred by the Grain Crops Research Institute of the Henan Academy of Agricultural Sciences. In 2005, plant variety right protection was applied for, with announcement number CNA002221E. In 2006, it passed provincial approval in Henan, and in August 2007 it passed national approval. I. Characteristics: The whole growth period is about 152 days, the plant type is compact, the plant height is 95 cm, growth is vigorous, tillering ability is strong, the effective panicle rate is high, the stems are thick, the leaf color is green, the flag leaf is short and held upright, and the leaf sheath is green; the panicle length is 16 cm, the grains are densely set
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"Early Piglet Weaning and Synchronized Farrowing" project passes acceptance review
Recently, the Shanghai Municipal Office of Science and Technology for Agricultural Development organized relevant experts at the Shanghai Xiangxin Pig Culture Exhibition Hall to conduct an acceptance review of the municipal "Four New" technology extension project "Early Piglet Weaning and Synchronized Farrowing." This project is both a "Four New" agricultural science and technology project and a supporting technology for the main promoted technology of the pig science and technology household program, "Sow Reproduction." It was launched in 2005 by Shanghai Xiangxin Livestock and Poultry Co., Ltd., with collaborative completion by the Nanhui District Animal Disease Prevention and Control Center, and the project lasted two years. The expert acceptance panel
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Processing technology for gamma-aminobutyric acid tea passes expert appraisal
The "gamma-aminobutyric acid tea processing technology," successfully researched under the leadership of Dr. Lin Zhi of the Tea Research Institute of the Chinese Academy of Agricultural Sciences, recently passed an expert appraisal organized by the Zhejiang Provincial Department of Science and Technology. The appraisal committee listened to the project team's technical research report, evaluated the tea samples, and after careful deliberation unanimously concluded that the technology is comprehensive and systematic, contains multiple innovations, fills a domestic gap, and ranks at the international leading level in similar research. The main research results achieved are as follows: 1. For the first time, 7 tea plant varieties suitable for processing gamma-aminobutyric acid tea were screened out, and the
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New Silkworm Variety Qiantang × Xinchao Passes Approval
Provincial Department of Agriculture Announcement No. 2 of 2008 announced that the new silkworm variety "Qiantang × Xinchao", bred by the Sericulture Research Institute of the Provincial Academy of Agricultural Sciences, passed approval at the 37th Crop Variety Approval Meeting of the Provincial Crop Variety Approval Committee. "Qiantang × Xinchao" is a pair of medium-silk-yield silkworm varieties; this variety develops uniformly, has strong resistance, high cocoon yield, relatively large cocoons, and excellent cocoon quality. It is suitable for rearing in all sericulture areas of our province. Key points for rearing this variety: 1. During the young silkworm stage, it has a strong tendency toward light and crowding, so the seats should be evened out and the trays adjusted in time; 2. During the young silkworm stage, use leaves that are suitably mature but on the tender side
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