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Introduction to the Characteristics of the Xiangchundou 18 Soybean Variety

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Xiangchundou 18 is a new medium-maturing conventional soybean variety bred by the Crop Research Institute of the Hunan Academy of Agricultural Sciences, with the parents Huaichun 79-16/Zhechun 1. Characteristics and traits: the whole growth period of this variety is 101 days, the plant is erect, the plant height is 66 cm, the stem thickness is medium, it has a determinate podding habit, the number of nodes on the main stem is 12.8, the number of branches is 2.5, the leaves are medium-sized, oval-shaped, the flowers are white, and the hairs are gray. The number of pods per plant is 18.4, with an average of 2.3 seeds per pod. When the pods are ripe, they are light brown, and the bottom pod height is about 16 cm. The seed

Xiangchundou 18 is a new medium-maturing conventional soybean variety bred by the Crop Research Institute of the Hunan Academy of Agricultural Sciences, with the parents Huaichun 79-16/Zhechun 1.

Characteristics and traits: the whole growth period of this variety is 101 days, the plant is erect, the plant height is 66 cm, the stem thickness is medium, it has a determinate podding habit, the number of nodes on the main stem is 12.8, the number of branches is 2.5, the leaves are medium-sized, oval-shaped, the flowers are white, and the hairs are gray. The number of pods per plant is 18.4, with an average of 2.3 seeds per pod. When the pods are ripe, they are light brown, and the bottom pod height is about 16 cm. The seeds are oval-shaped, the seed coat is yellow, the hilum is brown, the 100-seed weight is about 20 grams, the seeds are uniform, and the percentage of fully filled seeds is high. In the Hunan Province spring soybean regional trials from 1996 to 1997, this variety had an average yield of 162.7 kg per mu, an increase of 7.8% over the control variety Xiangchundou 10, with great yield potential, and the highest yield per mu could reach 250 kg. The quality is excellent, with a protein content of 43.17%, a fat content of 22.84%, and a combined protein and fat content of 66.01%. It is highly resistant to viral diseases, downy mildew, and bacterial blight.

Breeder: Crop Research Institute of the Hunan Academy of Agricultural Sciences<地区及技术>=Xiangchundou 18 is suitable for monoculture or intercropping and relay intercropping cultivation in all parts of Hunan Province and similar southern regions. At present, the promoted area has reached 570,000 mu, increasing soybean production by 17.79 million kg. By 2002, the annual promoted area is expected to reach 4 million mu. Cultivation regulations: 1. Sow early at the right time. For Xiangchundou 18 in Hunan Province, the suitable sowing period is from late March to early April, slightly earlier in southern Hunan, and in northern Hunan, Xiang

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