Kui 368 (cotton)
Main characteristics: plant tower type, more compact. The plant height is about 79.8 cm, which is a medium-mature variety, and the growth period is about 129 days. The number of fruit branches per plant is about 12.4, the node position of the first fruit branch is about 6.5, the boll per plant is about 15.6, the boll weight is about 5.3 grams, the seed index is about 9.8 grams, the lint percentage is about 43.0%, and the flowering rate before frost is about 94.1%.
Disease resistance: resistant to Fusarium wilt and Verticillium wilt in 2002 and to Verticillium wilt in 2003.
Yield performance: the results of provincial spring sowing conventional cotton regional test from 2002 to 2003 showed that the average yield per mu was 96.7 kg and 94.6 kg respectively, and that of pre-frost lint was 90.4 kg and 89.6 kg respectively, while in the same group production experiment in 2003, the average lint yield per mu was 91.6 kg and 85.1 kg respectively.
The key points of cultivation techniques are as follows: the sowing date of film-mulched cotton field is April 15-20, and the planting density is 3000-4000 plants / mu. The dosage should not be too large in the early stage of chemical control, but can be increased in the later stage.
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Management of cotton field after rapid change of drought and flood
At present, it is the cotton vegetative growth into the peak, and gradually turn to the stage of reproductive growth, but also to absorb more fertilizer and water and is very sensitive period. Since June 4, there have been many rainy days, the air humidity is very high, and the temperature hovers at 25: 30 ℃. Fusarium wilt has been induced in many old cotton fields that have been planted for many years. The general wilt disease rate is about 5%, the serious field disease rate is about 10%, and the incidence rate in some areas is about 20%. Some cotton field bugs, cotton bollworms and red bugs
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State trial of Handan 284 cotton
Handan 284 cotton was selected and bred by Handan Institute of Agricultural Sciences in Hebei Province. it was approved by the National crop New Variety examination and approval Committee in 2001 and listed as a variety of "National Science and Technology key extension Plan" by the Ministry of Science and Technology in 2002. Xinxiang Xincheng seed industry has the right to develop and manage this variety in China. The variety was not sown on April 15-20 with plastic film mulching, and sown in open field on April 20-30, with 1600 plants per mu and 2000 plants per mu in dry and thin land. 1999 / 2000
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