Chengdou No. 7 (8601-4) (soybean)
The main results are as follows: (1) Variety source: in 1986, Sichuan Academy of Agricultural Sciences used Bai Qian as the female parent and Chengdu Tiankandou as the male parent.
(2) characteristics: this variety is a mid-mature spring soybean variety, and the growth period of spring sowing is about 120 days. Limited podding habits, white flowers, gray hairs. The grain is large (100 grains weigh about 26 grams), nearly round, seed coat yellow, navel yellow. The complete grain rate is high, with a protein content of 43.5% and a fat content of 20%. 7%. High yield, good quality, resistance to mosaic virus, strong resistance to lodging.
(3) yield performance: participated in the provincial regional test (medium maturity group) from 1995 to 1996. Among them, the average yield per mu in 1996 was 175.6 kg, 9.65% higher than that of the control. In the two-year provincial regional trial, the average yield per mu was 167.4 kg, an increase of 15.29% over the control. in 1996, while continuing to participate in the provincial regional trial, production tests were conducted in Chengdu, Emei and Maoxian County, with an average yield of 165kg per mu, an increase of 18.96% over Xisheng 3.
(4) suitable planting area: suitable to be popularized in areas below 1600 meters above sea level in our province.
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Chengdou No. 8 (soybean)
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
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Chengdou No. 6 (soybean)
(1) Variety source: it is an early-maturing spring soybean variety bred by the Provincial Academy of Agricultural Sciences. (2) characteristics: the growth period is about 103 days, which is 5 days earlier and later than that of the control. The plant height is about 55 cm, the podding habit is limited, the leaves are lanceolate, white flowers, gray hairs, mature pods are brown, the seeds are oval, the seed coat is yellow, the seed navel is brown, the weight of 100 seeds is about 17 grams, the seed protein content is 45.7%, and the fat is 19.61%. It mainly shows that there are many long grains in English, with the number of grains between 2.2 and 2.6 per English. Antiviral disease
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