Cotton Variety-Xiangmian 18
Xiangmian 18, selected by Zhang Xuelin and Jin Changlin of Hunan Cotton Science Research Institute, was named after being approved by the Provincial crop Variety approval Committee. This variety participated in the provincial cotton variety regional test from 1997 to 1999. In 1997, the average lint yield of each pilot was 134.12 kg per mu, 7.5% higher than that of Xiangmian 10 and 1.13% higher than Xiangzamian 1; in 1998, the average yield of each pilot was 115.11 kg per mu, 24.12% higher than Xiangmian 10, 12.41% higher than Xiangzamian 1, and 94.54 kg per mu in 1999.
The plant of this variety is tower-shaped, with medium-sized leaves and good light transmittance. The functional period of leaves is 2-3 days longer than that of other varieties, and the whole growth period is 123.8 days. It has good early maturity, high resistance to Fusarium wilt and resistance to Verticillium wilt. The gossypol content of this variety is 0.0304%, which is lower than the world health standard of 0.04%. Cottonseed can be used for food resource development, but its roots, stems and leaves all have glands, which is significantly different from the previous low-phenol cotton.
This variety has the characteristics of good early maturity, strong resistance, good boll setting, large boll, high lint percentage and high yield potential. The planting density is 1800 to 2000 plants per mu, and the flower and boll fertilizer is applied in advance to strengthen the control of foliar pests.
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Cotton Variety-- Xiangzamian 8
Variety source: Xiang V22/GK1 selected line Emuri 23. Approval number: national examination and approval cotton 2005018. Approval: it was approved by the National crop Variety approval Committee in 2005. Characteristics: transgenic insect-resistant hybrid generation, the growth period of spring cotton planting in the Yangtze River valley is 128 days. The plant is tower-shaped and compact, with a height of 107.5 cm, a stout stem, large and dark green leaves, 17.2fruit branches per plant, 22.0 bolls per plant, oval bolls, 6.0g per boll and seeds.
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Introduction of cotton varieties
The whole growth period of Xinqiu No. 1 is about 130 days. Good seedling emergence, strong growth in the early and middle stage, and good leaf function in the later stage. The plant type is compact. Fruit branches have high nodes, few superfluous buds, and are easy to manage. The yield is good, the boll setting is strong and concentrated, the boll is large, oval, and the boll weight is 6.4 grams. It is smooth and concentrated. The lint percentage is 41%, and the pre-frost flowering rate is 93.5%. High resistance to cotton bollworm, resistance to Fusarium wilt, resistance to Verticillium wilt, less crazy branches, easy to manage. The average yield per mu is about 400 kg. Generally, there are 3000 plants per mu of 2500mu.
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