Jiangsu has developed a new cotton product "Suza 3"
Suza 3, a new cotton product jointly selected by the Economic Research Institute of Jiangsu Academy of Agricultural Sciences and other units, has been successfully developed and approved by the national new variety in Jiangsu Province a few days ago. It is reported that this is the first bivalent transgenic insect-resistant hybrid cotton in Jiangsu province. Tests show that it has strong resistance to common pests such as Helicoverpa armigera and red bollworm.
According to experts, at present, insect-resistant cotton in the Yangtze River valley in China generally has only a single insect-resistant gene-"BT insect-resistant gene", while Suza 3 not only contains the above genes, but also has "CPTI insect-resistant gene", which is like double insurance for cotton, its insect-resistant performance is stronger and wider, and its persistence is better. Experts believe that the breeding of Suza 3 is a major breakthrough in the field of cotton breeding in Jiangsu Province and has a high prospect of popularization and application.
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Analysis of Cotton Bud and Boll drop
A large number of bud and boll shedding often occur in cotton production, which seriously affects the cotton yield and the income of cotton farmers. As there are many reasons for bud and boll shedding, only "symptomatic treatment" can effectively reduce bud shedding and improve yield and benefit. First, the breed factor. Blind Toona sinensis and cotton bollworm like to lay eggs on hairy cotton varieties, and hairy varieties increase the adhesion of eggs, which are not easy to be blown down by the wind and washed away by Rain Water, so they suffer seriously, resulting in a large number of buds and bolls falling off. The varieties with smooth leaves are more hairy than those with more hairs.
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Basic copper sulfate can be used to control cotton diseases.
Copper noble 27.12% basic copper sulfate suspension can be used to control many diseases of cotton. After sowing and covering the soil of medicated cotton at seedling stage, it was poured with copper noble 27.12% basic copper sulfate suspension 600 × 800 times to disinfect the seedbed soil and effectively prevent soil-borne diseases. When cotton seedlings are neat and cotyledons are spreading, spraying 1000 times of copper noble 27.12% basic copper sulfate suspension can effectively control cotton seedling diseases such as blight and anthracnose. Three to five days before transplanting, the use of copper is noble
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