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Introduction to the Characteristics and Traits of the Chengdou No. 6 Soybean Variety
(1) Variety source: An early-maturing spring soybean variety bred by the Crop Research Institute of the Provincial Academy of Agricultural Sciences. (2) Characteristics and traits: The growth period is about 103 days, 5 days later maturing than the control Aijiaozao. Plant height is about 55 cm, with determinate pod-bearing habit, lanceolate leaves, white flowers, gray hairs, brown mature pods, elliptical seeds, yellow seed coat, brown hilum, and 100-seed weight of about 17 g. The seed protein content is 45.7%, and the fat content is 19.61%. It mainly shows long pods and many seeds, with 2.2-2.6 seeds per pod. It is resistant to viral diseases.
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Introduction to the Soybean Variety Chengdou 7 (8601-4)
(1) Variety origin: This line was developed by the Sichuan Academy of Agricultural Sciences in 1986 by crossing Baiqiancheng as the female parent with Chengdu Tiankan Dou as the male parent, followed by generation-by-generation directional selection. (2) Characteristics: This variety is a medium-maturing spring soybean variety, with a spring sowing growth period of about 120 days. It has a determinate podding habit, white flowers, and gray pubescence. The seeds are large (100-seed weight about 26 g), nearly round, with yellow seed coats and yellow hila. The rate of fully developed seeds is relatively high, the protein content is 43.5%, and the fat content is 20.7%. It has good yield potential, excellent quality, resistance to mosaic virus disease, and strong lodging resistance.
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Introduction to the Characteristics of the Soybean Variety Chengdou No. 8
(1) Variety source: Chengdou No. 8 (formerly coded 8407-1) was developed by the Crop Research Institute of the Sichuan Academy of Agricultural Sciences through crossbreeding of Chengdou No. 4 and (Rongjing) badouzi. (2) Characteristics: An early-maturing spring soybean variety, it can also be planted in summer and autumn. The growth period for spring sowing is about 105 days, plant height is 40 cm, it has strong virus resistance and lodging resistance, the white grain weight is about 18 g, and the seeds contain 44.4% protein and 20.2% fat. (3) Yield performance: The three-year provincial regional trial average from 1994-1996
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Brief Introduction to the Characteristics of the Chengdou No. 9 Soybean Variety
(1) Variety source: Chengdou No. 9 was developed by the Crop Research Institute of the Sichuan Academy of Agricultural Sciences in 1988 through sexual hybridization using Aijiaozao as the female parent and Leidian (introduced from Japan) as the male parent, followed by selection through successive generations. (2) Characteristics: The plant is about 50 cm tall, with elliptical leaves, white flowers, brown mature pods, elliptical seeds, yellow seed coats, and brown hilum, with a 100-seed weight of about 21 grams. This variety is an early-maturing spring soybean variety with determinate podding, suitable for spring sowing, and can also be planted in summer and autumn. When spring-sown, the whole
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Characteristics and Traits of the Chuandou No. 4 Soybean Variety
(1) Variety source: Bred by Sichuan Agricultural University. (2) Characteristics and traits: The full growth period is 102 days, and it is resistant to viral diseases. The plant height is moderate, with purple flowers, brown pubescence, and a compact, upright plant type. It has a determinate podding habit, and the mature pods are brown and sickle-shaped. The seeds are round, with a brown hilum and yellow seed coat. (3) Yield performance: In the 1993 provincial regional trial, the average yield per mu was 141.0 kg, an increase of 22.08% over the control (Aijiaozao). In 1994, the average yield per mu was 121.7 kg, an increase of
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Characteristics of the Chuandou No. 5 Soybean Variety
(1) Variety origin: In 1988, the College of Agriculture of Sichuan Agricultural University used Xiangchun No. 10 as the female parent and the selected line G272 of Yaan white-haired soybean as the male parent for sexual hybridization. It was developed in 1994 using the modified bulk selection method. (2) Characteristics: An early-maturing spring soybean with a spring sowing growth period of 108 days, plant height 54.1 cm, 2.6 branches per plant, white flowers, gray hairs, determinate podding habit, compact plant type, brown mature pods, oval seeds, yellow seed coat, brown hilum, 100-seed weight 21.3 g,
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Detailed Introduction to the Chuandou No. 6 Soybean Variety
(1) Variety source: This variety was developed by the College of Agronomy of Sichuan Agricultural University in 1995 through crossbreeding and selection using (Xiangchun No. 10 x Ningzhen No. 1) x Aijiaozao. (2) Characteristics: This variety has moderate plant height (46.9 cm), a compact plant type, and upright growth. Purple flowers, brown pubescence, determinate pod-bearing habit, elliptical leaf shape, mature pods are brown and sickle-shaped, seeds are elliptical, 100-seed weight 22 grams, yellow seed coat, light yellow hilum. Crude protein content 45.7%, fat 17.4%, complete seed
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Technique for Cultivating Oyster Mushrooms by Combining Soybean Stalk Bags with Wall Cultivation
Using soybean stalks as the growing substrate and combining bag cultivation with wall cultivation to grow oyster mushrooms can reduce costs and increase benefits. Preparing the substrate: select dry, mold-free soybean stalks, sun-dry them for 2-3 days, then crush them. Substrate formula (by weight): soybean stalk powder 78%, wheat straw 10%, soybean cake 5%, cornmeal 2%, gypsum 1%, superphosphate 3.5%, urea 0.5%. Add 130 kg of water to the substrate, mix well, then pile it up for fermentation, turning the pile 3 times during fermentation. Bagging and inoculation: spread out the fermented
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Comprehensive control methods for soybean root-knot nematode disease
Soybean root-knot nematode disease, also known as "Fire Dragon Seedling," is a whole-plant disease caused by nematodes attacking soybean roots, leading to bacterial infection and disease. Affected plants grow slowly, with short, small, and yellowing stems and leaves, delayed flowering, few and small pods, and shriveled seeds; in severe cases, no pods form, or even the entire plant dies. Soybean root-knot nematode disease spreads rapidly, and the pathogenic nematodes can survive in the soil for a long time. Once the disease occurs, it is very difficult to eradicate completely, so comprehensive control measures must be adopted: 1. Select and sow disease-resistant varieties; 2. Control the source of infection
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Integrated Control Methods for Soybean "Fire Dragon Seedling"
In Wudalianchi City, Heilongjiang Province, the soybean area is 950,000 mu, with a continuous cropping area of 930,000 mu, accounting for 97.8% of the soybean sown area. Through investigation, the area affected by soybean "Fire Dragon Seedling" is around 96.5%, with most yield reductions between 20 and 50%, and some plots reaching total crop failure. It can be said that due to the influence of the market economy, the continuous cropping area of soybean cannot be controlled, but through integrated control, the occurrence of soybean "Fire Dragon Seedling" can be reduced, enabling soybean to achieve high and stable yields. The integrated control techniques for soybean "Fire Dragon Seedling" are as follows:
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