A New Cotton Variety "Tianning No.2" with High yield and Disease Resistance
I. characteristic characteristics
The growth period is 130d, the plant is tower-shaped, the plant height is 100cm, the fruit branches are 6-8 nodes, and the leaves are light green. The boll is oval, strong and concentrated in boll setting, and less resistant to drought and waterlogging. The boll weight is 5.5 g-6 g, with an average of 30-35 bolls per plant, with a maximum of 90. Smooth and white, easy to pick, lint percentage 38-40%, seed index 10g, pre-frost cotton 90%. High resistance to Fusarium wilt, disease index 2.3, high resistance to Verticillium wilt, disease index 22.9, precocious but not premature senility. Suitable for planting in the Yellow-Huaihe River Basin and the Yangtze River Basin.
Second, excellent quality
Cashmere length 30.9mm. Strength 30.7cm/tex, evenness 83.7%, elongation 6.8%, Macroclone value 4.4, reflectivity 77.9%, yellowness 7.8, ring yarn strength 146, air spinning index 1324.4, all indexes reach the national high quality cotton index.
III. Output
Through the regional test of cotton in Henan Province from 2001 to 2002, the cotton yield won the first place. Demonstration planting in Jiangxi, Anhui, Jiangsu, Henan and Hebei within a few years. There were 30 bolls per plant, 90 in the field and 150 in non-pruning. Generally, the yield of seed cotton per mu is 600-700 jin, and the highest yield per mu can reach 1000 jin.
IV. Key points of cultivation
(1) sowing amount: the nutrition bowl was sown in the first ten days of April, 0.5 kg per mu, 3 seeds per hole; direct seeding on April 20, coated seeds 0.75 kg per mu, 5 seeds per hole.
(2) promote growth in May, grow steadily in June, start on July 10, and spray foliar fertilizer (urea, boron fertilizer, potassium dihydrogen phosphate) every 10 days after August 10.
(3) planting density: a: 2500 plants per mu. B: not pruning 1000-1333 plants per mu. (1000 plants: row spacing 3 feet, plant spacing 2 feet, 1 plant per hole. 1333 plants: row spacing 3 feet, plant spacing 3 feet, 2 plants per hole).
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A New Cotton Variety "Yuncai n3738"
First, the characteristics. The cotton fiber of this strain is natural green, the plant growth is steady, the leaf is medium size, the leaf warp is obvious, the plant tower type, the growth period is 122 days. The boll is prominent, precocious but not senile, and the yield is good. The boll is large and oval, with a boll weight of 4.1 grams and a lint percentage of 28.7%. It has wide adaptability, good yield stability and high yield potential. Second, fiber quality and disease resistance. Determined by the Cotton Fiber quality testing Center of the Ministry of Agriculture, 2.5% span 27.6mm, micronaire value 2.68, compared with 2005
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A New Cotton Variety Shannong Shengmian No.1
Recently, the Fifth crop Variety approval Committee of Shandong Province held its fifth standing committee meeting and approved 55 new varieties of 9 crops such as corn, cotton and peanuts. Shannong Shengmian 1, a new transgenic insect-resistant cotton variety cultivated by Professor Shen Fafu of Shandong Agricultural University, has been approved. This is another new transgenic insect-resistant cotton variety cultivated by our school after Shannong Shengza 3. Shannong Shengmian No. 1 is a transgenic insect-resistant conventional variety with a growth period of 123 days, loose plant type, 6.5 nodes at the beginning of fruit branches and single plant.
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