Chuanza 11 (Cotton)
Approved by Sichuan Province in 1999. A cumulative promotion of 85000 mu.
The main results are as follows: (1) Variety source: it was bred by Cotton Research Institute of Sichuan Academy of Agricultural Sciences with self-bred double-resistant genic male sterile line Kang A2 as female parent and F10 superior line 2069 of Mexican semi-wild cotton (Sichuan 73-27x Mexican cotton).
(2) characteristics: mid-early maturing hybrid, plant high school, etc. (about 88 meters), the whole plant is tower-shaped, the first fruit branch node is low (4-6 nodes), strong boll setting, smooth boll production, sample lint percentage 43.54-44.37%, lint index 7.59g, seed index 9.34g, 2.5% span length 29.59mm, specific strength 21.16g/tex, micronaire value 4.64,resistance to Fusarium wilt, resistance to Verticillium wilt, Fusarium wilt index 11.35g. Verticillium wilt refers to 30.18, with moderate resistance to aphids.
(3) yield performance: according to the results of the provincial regional test in 1995-1996, the average lint yield per mu at 12 points was 108.78 kg, 13.53% higher than that of the control variety Chuanmian 56, and the average lint yield per mu in the 1997 production test was 99.68kg, 15.53% higher than that of the control Chuanmian 56.
(4) cultivation key points: ① sowing in time: sowing and raising seedlings from March 15 to April 10; ② guaranteed density: 2800-3200 plants per mu in Caoping land and 3500-4000 plants in slope terrace. ③ formula fertilization: 100kg lint 20 kg pure N, 50-60 kg cake fertilizer, 50 kg phosphate fertilizer. Potash fertilizer 5-10 kg. ④ chemical control 3-4 times, timely pest control.
(5) suitable planting area: suitable for planting in Sichuan cotton area and cotton area in the middle reaches of Yangtze River.
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Chuanza No. 8 (Cotton)
The main results are as follows: (1) Variety source: it is the first generation of cotton hybrid made by Lezhi County seed Company in 1988 with 473A dual-use line and Chuanbei 2. (2) characteristics: the growth period is 135 days, which belongs to the mid-early maturing upland cotton variety. Rapid growth and development at seedling stage, leaves of equal size, dark green in color, compact plant type, spreading fruit branches, uniform direction, good permeability, plant height 80-90 cm, steady growth at flowering and boll stage, concentrated flowering, thin boll shell, five-chamber bolls, single boll weight 5.08Mul 5.15g. Fiber color
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Chuanyou No. 1 (Cotton)
(1) combination source: this combination is a new type of cotton hybrid bred by Cotton Research Institute of Sichuan Academy of Agricultural Sciences using cotton genic male sterile "secondary method" complete male sterile line MA as female parent and Chuan 55 as male parent. (2) characteristics: the growth period is 128-131 days, which belongs to the type of early and middle maturity, rapid growth and development in the bud stage, vigorous growth in the early and middle stages, tower type, low node position of fruit branches, good ventilation and light transmittance, medium large and dark green leaves. The boll is large, the egg orchard is slightly pointed, and the single boll weighs 5.16 grams.
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