MySheen

Chengdou No. 8 (soybean)

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, The main results are as follows: (1) Variety source: Chengdou No. 8 (original code 8407-1) was bred by the cross between Chengdou No. 4 and (Rongjing) Dou Zi, which was used by Sichuan Academy of Agricultural Sciences. (2) characteristics: early-maturing spring soybean varieties, can also be planted in summer and autumn, spring sowing growth period of about 105 days, plant height of 40 cm, strong resistance to virus, lodging resistance, white grain weight of about 18 grams, grain protein 44.4%, fat 20.2%. (3) output performance: provincial and regional test level in 1994-1996

The main results are as follows: (1) Variety source: Chengdou No. 8 (original code 8407-1) was bred by the cross between Chengdou No. 4 and (Rongjing) Dou Zi, which was used by Sichuan Academy of Agricultural Sciences.

(2) characteristics: early-maturing spring soybean varieties, can also be planted in summer and autumn, spring sowing growth period of about 105 days, plant height of 40 cm, strong resistance to virus, lodging resistance, white grain weight of about 18 grams, grain protein 44.4%, fat 20.2%.

(3) yield performance: the average yield per mu in the provincial regional test in 1994-1996 was 149.5 kg, which was 26.05% higher than that of the control Gongdou 3. In the production experiment in 1997, the average yield per mu was 143 kg, which was 23.17% higher than that of the control Gongdou No. 3.

(4) cultivation key points: the optimum sowing date is before and after Qingming Festival, and the density is about 16000 plants per mu, 20000 plants per mu in summer sowing, and 3.5-40000 plants per mu before and after the Beginning of Autumn sowing in autumn. Properly prolonging the harvest time in the field can reduce the blighted grain.

(5) suitable planting area: suitable for planting in areas below 1600 meters above sea level in our province, adapting to a wide area.

 
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