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Introduction of new soybean varieties for farmers' reference in seed selection
Xinfeng No. 1 was developed by the Agricultural Technology Extension Station of Hongmiaozi Township, Xinbin County, through sexual hybridization and selection using Chang No. 4 as the female parent and Qunxuan No. 1 as the male parent. It was approved by the Crop Variety Approval Committee of Liaoning Province in December 2002. The variety has a growth period of 121 days and belongs to the early-maturing group. The average plant height is 94.7 cm, with a semi-determinate podding habit and 17.9 nodes on the main stem. The stems are thick and tough, the root system is well developed, and it is lodging-resistant. The leaves are round, the pubescence is gray, and the flowers are white. The pods are grayish-brown, with 59.9 pods per plant, and many pods contain 3-4 seeds. The seeds are yellow with a yellow hilum,
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Introduction to the Root Characteristics and Structure of Soybean
The root system of soybean is a taproot system. It is divided into a main root and lateral roots, and both the main root and the lateral roots are densely covered with root hairs. The main part of the root lies 5-20 cm deep in the soil, and the whole root system is roughly bell-shaped. On soybean roots, rhizobia live in symbiosis with the soybean. When the soybean germinates, the rhizobia invade the root, and when the soybean grows its first compound leaf, root nodules have formed on the soybean roots, first on the main root and then gradually spreading to the lateral roots. The root nodules are produced through the action of rod-shaped rhizobia that have 1-2 flagella at one end. They are aerobic bacteria, mainly growing on the root system near the soil surface
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How to prevent and treat duck hepatitis? Introduction to practical prevention and treatment methods
For the prevention and control of this disease, according to the characteristics of the disease, the focus should be placed on environmental sanitation control and immunization of breeder ducks, among other aspects. (1) Environmental sanitation control: This disease can be prevented by strict isolation measures. Ducklings under 4 weeks of age are susceptible to DHV, so raising ducklings within 4 weeks of age in isolation to prevent DHV infection can effectively control the occurrence of DHV. Implementing strict disinfection is an important measure to prevent this disease. Before each batch of ducklings enters the duck house, the duck house should be sprayed and disinfected with a 5% sodium hydroxide aqueous solution, etc., and personnel entering and leaving should take disinfection measures. Once this disease breaks out, isolation should be carried out immediately and the duck house should be thoroughly disinfected.
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Jindao 1187 Rice Variety Introduction
Breeding institution: Crop Research Institute, Tianjin Academy of Agricultural Sciences. Approval status: approved by the Tianjin Crop Variety Approval Committee in 1987, recognized by the Hebei Provincial Crop Variety Approval Committee in 1992, and approved by the National Crop Variety Approval Committee in 1993. Variety registration number: GS01003-1992. Variety source: 73-113/Tainan 3. Characteristics: a medium-late maturing japonica rice variety. Plant height about 110 cm, compact plant type, erect leaves, medium tillering
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Introduction to the rice variety Jindao 1007, formerly known as Jinyou 9702
Variety source: Jindao 521/Wuyujing 3. Characteristics: This variety is a conventional japonica-type rice variety. When grown in the Huang-Huai region, its whole growth period is 156.6 days, 1 day later maturing than the control Yujing 6. Plant height is 99 cm, total grains per panicle are 142.6, seed-setting rate is 84.5%, and 1000-grain weight is 23.7 g. Rice blast disease grade 3. Main rice quality indicators: head rice rate 67.3%, chalky grain rate 5%, chalkiness degree 0.2%, gel consistency 85 mm, amylose content 17.2%. Yield performance:
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Detailed Introduction to the Jinzhu No.1 Rice Variety
Breeding institution: Rice Research Institute, Tianjin Academy of Agricultural Sciences. Approval status: approved by the Tianjin Crop Variety Approval Committee in 1990, recognized by the Beijing Crop Variety Approval Committee in 1993, and approved by the National Crop Variety Approval Committee in 1995. Variety registration number: GS01008-1994. Variety source: Hongqi 25A/H-5//IR54///81-342. Characteristics: a medium-maturity japonica rice variety. Seedling stage growth is relatively luxuriant, the root system is well developed, plant height is about 100 cm
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Detailed Introduction to the Rice Variety Jinzhu No. 1
"Jinzhu No. 1" is a new medium-late rice variety developed through systematic selection, variety comparison, and regional trials by Niu Jing, a researcher at the Tianjin Academy of Agricultural Sciences and a Tianjin-appointed rice breeding expert, and his team. It is the first new variety in China developed through indica-japonica hybridization with major promotion value. It passed achievement appraisal in 1992. This variety is of the japonica type, with a full growth period of 150 days in the Beijing-Tianjin region, a seedling bed period of 35-40 days, and a main field period of 110-105 days. Seedling growth is relatively vigorous with a well-developed root system. The main stem has 15 leaves, plant height 90-10
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Introduction to the Characteristics and Traits of the Jinyou 71 Rice Variety
Jinyou 71 (rice) Variety source: A hybrid early rice combination developed by the China Rice Research Institute by crossing 23A/R71. Characteristics and traits: The whole growth period is about 111.0 days, about 4.0 days earlier maturing than Jinyou 402. Plant height is 88.0 cm, plant type is compact, tillering ability is strong, effective panicles are numerous, panicle type is somewhat small, and color retention at the late stage is good. Effective panicles per mu are 259,000. Panicle length is 18.9 cm, total grains per panicle are 94.0, seed setting rate is 80.4%, and 1000-grain weight is 25.3 g.
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Introduction to the Characteristics and Traits of the Jinyou 527 Rice Variety
Characteristics and traits: This variety is an indica-type three-line hybrid rice. When grown as a single-season mid-season rice in the upper reaches of the Yangtze River, the average whole growth period is 151.2 days, 1.4 days earlier maturing than the control Shanyou 63. Plant height is 111.5 cm, leaf color is dark green, plant and leaf shape is moderate, cold tolerance is relatively weak, and color conversion at maturity is good. The number of effective panicles per mu is 165,000, panicle length is 25.7 cm, total grains per panicle is 161.7, seed-setting rate is 80.9%, and 1000-grain weight is 29.5 g. Resistance: rice blast grade 9, bacterial leaf blight grade 5, brown planthopper
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Introduction to the Characteristics and Traits of the Jinyou 458 Rice Variety
Variety source: This is a hybrid early rice combination developed by the Rice Research Institute of the Jiangxi Academy of Agricultural Sciences by crossing the male sterile line Jin 23A with the restorer line 458 (IR58/Guichao 13). Approval status: Approved by the Jiangxi Provincial Crop Variety Approval Committee in March 2003. Characteristics and traits: The full growth period is 115.8 days, 0.8 days earlier than the control You I402. Plant height is 84.79 cm. The plant type is moderate, the stems are thick and strong, and the tillering ability is strong. The effective panicles per mu are 263,300, the total grains per panicle are 73.32, and the filled grains are 60.91
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