MySheen

Chuanza 11 (Cotton)

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, 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-precocious 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, 43% sample size.

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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