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Introduction to the Characteristics and Traits of the Gongdou No. 9 Soybean Variety

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(1) Variety source: It was developed by the Zigong City Institute of Agricultural Sciences in 1994 through crossbreeding, using Chuanxiangzao No. 1 as the female parent and Jinda 701 as the male parent. (2) Characteristics and traits: Early-maturing spring soybean, with a whole growth period of 105 days, and about 80 days when sown in autumn. Plant height 40.8 cm, upright growth, determinate pod-setting habit, white flowers, gray pubescence, large seeds, 100-seed weight 20.8 g, yellow seed coat, brown hilum, oval seeds, pods turning brown when mature, pods slightly sickle-shaped. Complete seed rate 91.9%, protein content 43.3%, fat

(1) Variety source: It was developed by the Zigong City Institute of Agricultural Sciences in 1994 through crossbreeding, using Chuanxiangzao No. 1 as the female parent and Jinda 701 as the male parent.

(2) Characteristics and traits: Early-maturing spring soybean, with a whole growth period of 105 days, and about 80 days when sown in autumn. Plant height 40.8 cm, upright growth, determinate pod-setting habit, white flowers, gray pubescence, large seeds, 100-seed weight 20.8 g, yellow seed coat, brown hilum, oval seeds, pods turning brown when mature, pods slightly sickle-shaped. Complete seed rate 91.9%, protein content 43.3%, fat content 18.48%. Wide adaptability, strong disease resistance and lodging resistance, good yielding ability.

(3) Yield performance: In the two-year provincial regional trial from 1995 to 1996, the average yield was 145 kg per mu, an increase of 19.6% over the control Gongdou No. 3; in the 1997 production trial, the average yield was 146.1 kg per mu, an increase of 15.6% over the control Gongdou No. 3.

(4) Key cultivation points: For spring sowing, late March to early April is suitable, with 16,000-19,000 plants per mu; for autumn sowing, sow from August 10-15, with 30,000-35,000 plants per mu.

(5) Suitable planting areas: Suitable for planting in most areas of our province, and can be sown in spring or autumn; it can be grown as a sole crop, intercropped, or cultivated as field-edge soybean.

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