What are the latest high-yield cotton varieties?
Cotton is a plant of the genus Gossypium in the Malvaceae family, native to the subtropics, and is now widely cultivated in all cotton-producing regions of our country. Existing cultivated varieties include Stoneville cotton, Deltapine cotton, Deltapine cotton, and Coker cotton. The main commercial cotton bases are the Jianghuai Plain, Jianghan Plain, Southern Xinjiang cotton region, central-southern Hebei, northwestern Shandong, northern Henan Plain, and the coastal and riverside plains of the lower Yangtze River. Now let us take a look at which high-yield cotton varieties there are!
Xiangzamian No. 7
[Planting region] Xiangzamian No. 7 is a first-generation hybrid cotton variety with a transferred insect-resistance gene and a medium maturity period. It has obtained an agricultural genetically modified organism production and application safety certificate. The GMO name is Xiangzamian No. 7. It meets the national cotton variety approval standards and has passed approval. It is suitable for spring sowing cultivation in Jiangsu, south of the Huaihe River in Anhui, northern Jiangxi, Hubei, northern Hunan, eastern Sichuan, southern Henan, and the coastal areas of Zhejiang.
[Plant characteristics] In the Yangtze River Basin cotton region, the spring sowing growth period is 123 days. Emergence is good, growth vigor is strong, and uniformity is good. Plant height is 115 cm, plant type is compact, fruit branches are relatively long and spreading, stems are thick and strong, pubescence is abundant, leaves are relatively large and dark green, the first fruit branch node is at 6.4 nodes, bolls per plant are 28, bolls are oval, boll opening is smooth, single boll weight is 6.1 g, lint percentage is 42.1%, seed index is 9.9 g, pre-frost flower rate is 94.3%, and the rate of hard bolls is 7.4%.
[High-yield performance] From 2006 to 2007, it participated in the regional trial of the medium-maturity group in the Yangtze River Basin cotton region. The two-year average yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 262.7 kg, 110.4 kg, and 104.4 kg respectively, increasing by 4.3%, 12.0%, and 12.5% respectively compared with the control Xiangzamian No. 8. In the 2008 production trial, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 225.4 kg, 95.4 kg, and 88.1 kg respectively, increasing by 1.4%, 7.7%, and 8.6% respectively compared with the control Xiangzamian No. 8.
[Resistance identification] Tolerant to Fusarium wilt, tolerant to Verticillium wilt, moderately resistant to cotton bollworm, resistant to pink bollworm.
CRI 63
[Planting region] CRI 63 is a two-gene transgenic insect-resistant cotton hybrid produced by the Cotton Research Institute of the Chinese Academy of Agricultural Sciences and the Biotechnology Research Institute, using the conventional upland cotton new line “9053” as the female parent and the domestically produced two-gene transgenic insect-resistant cotton new variety improved line sKeK9708 selection P4 as the male parent. It is suitable for planting in the Yangtze River Basin cotton region.
[Plant characteristics] Emergence is relatively good, plant shape is tower-shaped, plant height is medium, fruit branches are compact, stem pubescence is sparse, leaves are medium-sized, leaf color is relatively dark, bolls are oval, and boll opening is smooth. The growth period is 125 days, plant height is 109.50-121.0 cm, fruit branches are 17.81, bolls per plant are 25.57-29.5, boll weight is 5.71-6.6 g, lint percentage is 40.9-41.52%, seed index is 9.81-10.3 g, pre-frost flower rate is 88.57-93%, and the rate of hard bolls is 4.4-12.24%.
[High-yield performance] The average seed cotton yield of CRI 63 is 3567.30 kg/hectare, increasing by 10.1% compared with the control variety (Xiangzamian No. 2 F1); the average lint cotton yield is 1478.55 kg/hectare, increasing by 10.0% compared with the control variety, ranking first, with an extremely significant increase. The pre-frost lint cotton yield is 1310.40 kg/hectare, increasing by 10.2% compared with the control. The 2006 production trial results at 10 locations in the Yangtze River Basin cotton region showed that seed cotton and lint cotton yields were 3876.00 kg/hectare and 1585.50 kg/hectare respectively, increasing by 0.4% and 2.3% respectively compared with the control variety (Xiangzamian No. 8 F1).
[Resistance identification] Tolerant to Fusarium wilt, tolerant to Verticillium wilt, highly resistant to cotton bollworm, highly resistant to pink bollworm.
Tongzamian 411
[Planting region] Tongzamian 411 is a first-generation hybrid variety with a transferred insect-resistance gene and a medium maturity period. It has obtained an agricultural genetically modified organism production and application safety certificate and meets the national cotton variety approval standards. It is suitable for spring sowing cultivation in Jiangsu and south of the Huaihe River in Anhui, northern Jiangxi, Hubei, northern Hunan, eastern Sichuan, southern Henan, and the coastal areas of Zhejiang.
[Plant characteristics] In the Yangtze River Basin cotton region, the spring sowing growth period is 124 days. Emergence is relatively good, growth vigor is strong, and uniformity is good. Plant height is 114.7 cm, plant type is relatively compact, fruit branches are relatively long and spreading, stems are thick and strong, pubescence is relatively sparse, leaves are medium-sized and dark green, the first fruit branch node is at 6.7 nodes, bolls per plant are 29.5, bolls are oval, boll opening is smooth, single boll weight is 6 g, lint percentage is 43.2%, seed index is 10.4 g, pre-frost flower rate is 93.3%, and the rate of hard bolls is 11.8%.
[High-yield performance] From 2007 to 2008, it participated in the regional trial of the medium-maturity group in the Yangtze River Basin cotton region. The two-year average yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 249.8 kg, 108 kg, and 100.9 kg respectively, increasing by 6.3%, 16.0%, and 16.8% respectively compared with the control Xiangzamian No. 8. In the 2008 production trial, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 248.9 kg, 107.9 kg, and 100.5 kg respectively, increasing by 6.9%, 16.2%, and 17.0% respectively compared with the control Xiangzamian No. 8.
[Resistance identification] Tolerant to Fusarium wilt, tolerant to Verticillium wilt, resistant to cotton bollworm.
Ezamian 29
[Planting region] A first-generation hybrid variety with a transferred insect-resistance gene and a medium maturity period, bred by the Jingzhou Academy of Agricultural Sciences and the Biotechnology Research Institute of the Chinese Academy of Agricultural Sciences. It has obtained an agricultural genetically modified organism production and application safety certificate and meets the national cotton variety approval standards. It is suitable for spring sowing cultivation in Jiangsu and south of the Huaihe River in Anhui (excluding Anqing and Yancheng), the coastal areas of Zhejiang, northern Jiangxi, the Jianghan Plain in Hubei, and Hunan.
[Plant characteristics] In the Yangtze River Basin cotton region, the spring sowing growth period is 123 days. Emergence is good, growth vigor is strong, and uniformity is good. Plant type is compact, plant height is 118 cm, stems are thick and strong with sparse pubescence, fruit branches are relatively long and spreading, leaves are medium-sized and light green, the first fruit branch node is at 6.3 nodes, bolls per plant are 26.1, bolls are oval, boll opening is smooth, single boll weight is 6.2 g, lint percentage is 41.7%, seed index is 10.4 g, and pre-frost flower rate is 94.8%.
[High-yield performance] From 2005 to 2006, it participated in the regional trial of the medium-maturity hybrid group in the Yangtze River Basin cotton region. In 2005, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 213.7 kg, 89.3 kg, and 84.3 kg respectively, increasing by 7.1%, 7.9%, and 10.0% respectively compared with the control Xiangzamian No. 2. In 2006, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 257.9 kg, 107.2 kg, and 102.1 kg respectively, increasing by 2.3%, 8.7%, and 9.2% respectively compared with the control Xiangzamian No. 8. In the 2007 production trial, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 247.5 kg, 103.5 kg, and 98.0 kg respectively, increasing by 4.7%, 11.2%, and 11.4% respectively compared with the control Xiangzamian No. 8.
[Resistance identification] Tolerant to Fusarium wilt, tolerant to Verticillium wilt, highly resistant to cotton bollworm, highly resistant to pink bollworm.
Lumianyan No. 28
[Planting region] Lumianyan No. 28 is a transgenic insect-resistant conventional variety. The seed meets the national cotton variety approval standards. It is a transgenic insect-resistant conventional wheat-intercropped spring cotton variety, suitable for spring intercropping in wheat fields in southern Hebei, Shandong, northern Henan, central-eastern Henan, Jiangsu, and the Yellow River Basin cotton region north of the Huaihe River in Anhui.
[Plant characteristics] In the Yellow River Basin cotton region, the full growth period under wheat field intercropping is 138 days. Plant shape is relatively loose, plant height is 90.4 cm, stems are tough with medium-dense pubescence, leaves are medium-sized and green, the whole plant has glands, glands are medium-dense, the first fruit branch node is at 6.8 nodes, bolls per plant are 15.7, bolls are round with slightly protruding tips, boll shells are thin, boll opening is smooth and concentrated, single boll weight is 5.8 g, lint percentage is 41.5%, seed index is 10.8 g, pre-frost flower rate is 88.6%, emergence vigor is average, growth and development throughout the growth period are steady, leaf function in the middle and late stages is relatively strong, and there is no premature senescence.
[High-yield performance] From 2002 to 2003, it participated in the variety regional trial of the wheat-intercropped cotton group in the Yellow River Basin cotton region. The yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 232.2 kg, 96.2 kg, and 85.2 kg respectively, increasing by 19.0%, 15.6%, and 16.2% respectively compared with the control Yu 668. In the 2004 production trial, the yields per mu of seed cotton, lint cotton, and pre-frost lint cotton were 226.5 kg, 95.7 kg, and 90.2 kg respectively, increasing by 12.1%, 20.1%, and 23.1% respectively compared with the control CRI 45.
[Resistance identification] Highly resistant to Fusarium wilt, tolerant to Verticillium wilt, resistant to cotton bollworm.