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Detailed introduction to the cotton variety Jichuangmian 1

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Jichuangmian 1 was bred by Hebei Genesis Technology Co., Ltd. and Shijiazhuang Academy of Agricultural Sciences, and was approved by the Hebei Provincial Crop Variety Committee in April 2006. 1. Main characteristics and traits. Plant height about 94.8 cm, growth period about 135 days. Number of fruit branches per plant about 12.4, node position of the first fruit branch about 7.0, number of bolls per plant about 13.8, boll weight about 6.2 g, seed index about 11.5 g, lint percentage about 40.9%, pre-frost

Jichuangmian 1 was bred by Hebei Genesis Technology Co., Ltd. and Shijiazhuang Academy of Agricultural Sciences, and was approved by the Hebei Provincial Crop Variety Committee in April 2006.

1. Main characteristics and traits. Plant height about 94.8 cm, growth period about 135 days. Number of fruit branches per plant about 12.4, node position of the first fruit branch about 7.0, number of bolls per plant about 13.8, boll weight about 6.2 g, seed index about 11.5 g, lint percentage about 40.9%, pre-frost lint yield rate about 88.0%. This variety is a transgenic insect-resistant cotton hybrid, resistant to cotton bollworm, pink bollworm and other lepidopteran pests.

Disease resistance: According to the disease resistance identification results of the Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, in 2003 it was resistant to fusarium wilt and tolerant to verticillium wilt. In 2004 it was resistant to fusarium wilt and tolerant to verticillium wilt.

Fiber quality: According to the test results of the Cotton Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture in 2005, the upper half mean length was 30.3 mm, uniformity index 84.0, micronaire value 4.7, specific strength 30.8 cN/tex, elongation 6.9%, reflectance 75.4, yellowness 7.1, spinning consistency index 146, short fiber index 9.0.

2. Yield performance. According to the results of the Hebei Province spring-sown cotton group regional trial from 2003 to 2004, the average lint yield per mu was 93.5 kg and 92.0 kg respectively, and the pre-frost lint yield per mu was 81.2 kg and 82.5 kg respectively. According to the 2005 production trial results, the average lint yield per mu was 93.1 kg, and the pre-frost lint yield per mu was 87.9 kg.

3. Key points of cultivation techniques. Sowing period: April 20-25 for plastic-film mulched cotton fields, April 25-30 for bare-land cotton fields. Planting density 2800-3500 plants/mu. Pay attention to chemical regulation, disease prevention and pest control.

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