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Introduction to the Yudou 21 Soybean Variety and Its Cultivation Points
The new soybean variety Yudou 21 was developed according to the breeding principle of selecting and pairing superior × superior parents. In 1986, the large-seeded, high-yielding, disease-resistant medium-maturity variety Yudou 10 was used as the female parent, and the multi-branched, dense-podded, high-quality, multi-resistant small-seeded variety Yudou 6 was used as the male parent. They were combined using the diallel crossing experimental method, and the variety was bred by the Institute of Industrial Crops, Henan Academy of Agricultural Sciences through 10 years and 11 generations of directional selection. Characteristics and traits: Yudou 21 (Zhengshuangjiao 8603-1) has a growth period of 105 days and belongs to the medium-maturity variety. It has a determinate podding habit, the plant is erect, plant height 8
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Introduction to the characteristics and traits of the Yudou No. 22 soybean variety
Variety source: Bred by the Institute of Industrial Crops, Henan Academy of Agricultural Sciences. Approval status: Approved by the National Crop Variety Approval Committee in 2000. Characteristics and traits: This variety has a growth period of about 100 days and belongs to the medium-maturity group. Its root system is well developed, seedling growth is vigorous, stems are thick and sturdy, the number of nodes on the main stem reaches as many as 22, branching is moderate, plants are erect, plant height is about 100 cm, and the lower leaves tend toward a dark green color. It is resistant to mosaic virus disease, moderately resistant to pod borer and cyst nematode, and resistant to soybean frogeye leaf spot and purple seed stain, etc. Drought resistance is medium
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Detailed introduction to the Yudou 24 soybean variety
Yudou 24 is a medium-maturity, disease-resistant, high-yielding new soybean variety bred by the Zhoukou Prefectural Agricultural Science Institute in Henan Province. Its parental combination is: [(Yudou 15 Yudou 10) F1//(Sidou 11/Zhou 8460) F1] F1///[(Sidou 11/Zhou 8460) F1//(Zhou 85054/Zhou 8265) Fl] F1. Characteristics: Yudou 24 has an average growth period of 104 days in Henan Province, making it a medium-maturity summer soybean variety. It has a determinate podding habit, a plant height of 70 cm, is relatively resistant to lodging, and has effective branches per plant
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Detailed introduction to the Jidou No. 10 soybean variety
Jidou No. 10 is a new early-maturing summer soybean variety bred by the Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, using Williams/Line 7476 as the material. Characteristics: this variety has a growth period of about 93 days, a compact plant type with few branches, semi-determinate podding habit, mainly podding on the main stem, with pods evenly distributed from top to bottom, a plant height of 80 cm, and a bottom pod height of 15-20 cm. This variety has uniform maturity and good yellowing, and is suitable for mechanical harvesting. According to testing by the Grain Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture, the crude protein content on a dry basis is 42.8%, and the fat content
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Introduction to the Characteristics and Traits of the Jidou 11 Soybean Variety
Jidou 11 (Cang 8110-251) was developed by the Cangzhou Academy of Agriculture and Forestry Sciences of Hebei Province in 1981 through sexual hybridization using B99 as the female parent and Qihuang 1 as the male parent, selected and bred by the pedigree method. Characteristics and traits: This variety grows upright, with a plant height of 60-70 cm, 12-14 nodes on the main stem, 3 effective branches, and a compact plant shape. Internodes are short, pod set is dense, and leaves are ovate and medium-sized. White flowers, gray pubescence, determinate pod-setting habit, 30-35 effective pods per plant, with an average of 2
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Introduction to the soybean variety Jihuang 13 (formerly Jihuang 103)
Characteristics: White flowers, brown pubescence, lanceolate leaves, semi-determinate podding habit. Average growth period 139 days, plant height 102.7 cm, effective branches 1.3, effective pods per plant 41.2, seeds per plant 91.6, seed weight per plant 17.8 g, 100-seed weight 19.9 g. Yellow seed coat, brown hilum, round seeds. Upon inoculation identification by the Soybean Research Center of the Jilin Academy of Agricultural Sciences, moderately resistant to soybean mosaic virus strain SMV1, moderately susceptible to mixed SMV strains, and moderately susceptible to soybean cyst nematode race 4. Average
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Detailed Introduction to the Soybean Variety Canada No. 1
Canada No. 1 is a new soybean standout introduced from Canada in 2002 by Zhao Wenchen, a senior agronomist at the Agriculture Bureau of Shanting District, Zaozhuang City, Shandong Province, with strong support and assistance from the district's rural credit union, and then tested, demonstrated, and promoted; it has already won the recognition of local growers. Characteristics and traits: the plants of this variety branch in a fan shape, with a peculiar plant form. Plant height is generally 70-80 cm, and high-yielding plants reach over 1 m in height. A single plant generally sets about 300 pods, of which pods with 3-4 seeds make up about 80%, with some 5-seeded pods.
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How to mitigate continuous and alternate soybean cropping? Integrated measures are key
To minimize yield losses from continuous and alternate cropping, continuous and alternate soybean planting should be avoided as much as possible, rational crop rotation should be maintained, alternate cropping should be reduced, and continuous cropping should be controlled. In the long term, the area of continuous and alternate soybean cropping should not be expanded without limit, so as to avoid declining soil productivity and creating a vicious cycle. When continuous and alternate cropping is unavoidable, alternate cropping should be arranged first, and continuous cropping should be used only when alternate cropping cannot be arranged, and continuous cropping must not exceed two years. In response to the causes of yield reduction under continuous and alternate cropping, with emphasis on regulating nutrition and controlling pests and diseases, existing scientific
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Introduction to the Characteristics and Traits of the Jiaoxuan No. 2 Soybean Variety
Jiaoxuan No. 2 fresh soybean is an excellent spring soybean variety bred by Shanghai Jiao Tong University. Through trial planting and demonstration, this variety has shown stable traits, good uniformity, evenly distributed pod setting, white pubescence and wide pods, plump seeds, and a high proportion of three-seed pods. Compared with Taiwan 75, when sown at the same time, it comes to market 10 d earlier, has good economic benefits, and is deeply favored by farmers. I. Characteristics and Traits Jiaoxuan No. 2 soybean belongs to the early-maturing spring soybean varieties, with a spring sowing growth period of 75--80 d. Determinate pod-setting habit, plant height 50--60 cm,
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Prevent soybean flower and pod drop: early prevention is key
Soybean flower and pod drop is a major factor limiting soybean yield increases. In production, the rate of soybean flower and pod drop generally reaches about 45%-70%. The most flowers drop 3-5 days after flowering, and the most pods drop 10-15 days after flowering. To increase soybean yields, substantial effort must be devoted to preventing flower and pod drop. 1. Causes of flower and pod drop 1. Poor ventilation and light penetration: excessive planting density and poor planting techniques cause excessive vegetative growth, too
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