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Cotton variety Yubaoza No. 4 is introduced by Golden Nonghua

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Approval number: Yushenmian 2006011 Characteristics: Spring cotton hybrid variety. (Central Henan region) The whole growth period is 131 days, with good seedling vigor and steady late-stage growth. Plant height is 104.9 cm, the plant is tower-shaped, and the plant form is relatively loose. Leaves are medium-sized and relatively dark in color, with strong boll-setting ability. Bolls are oval and medium to large. The average number of fruiting branches per plant is 17.2, bolls per plant are 28, single boll weight is 6.2 g, lint percentage is 40.5%, seed index is 11.1 g, and the pre-frost boll rate is above 90%. Boll opening is smooth, the fiber is white, and the staple length is 2

Approval number: Yushenmian 2006011

Characteristics: Spring cotton hybrid variety. (Central Henan region) The whole growth period is 131 days, with good seedling vigor and steady late-stage growth. Plant height is 104.9 cm, the plant is tower-shaped, and the plant form is relatively loose. Leaves are medium-sized and relatively dark in color, with strong boll-setting ability. Bolls are oval and medium to large. The average number of fruiting branches per plant is 17.2, bolls per plant are 28, single boll weight is 6.2 g, lint percentage is 40.5%, seed index is 11.1 g, and the pre-frost boll rate is above 90%. Boll opening is smooth, the fiber is white, and the staple length is 29.3 mm. Highly resistant to Fusarium wilt, tolerant to Verticillium wilt, and resistant to cotton bollworm.

Yield performance: From 2004 to 2005, it participated in the Henan Province spring-sowing hybrid cotton regional trial and production trial. The average seed cotton and lint cotton yields increased by 10% and 7% compared with the control variety Yuxiang 35. In 2006, it was planted as a demonstration on 3.5 mu in Yanjin, Henan, with an average seed cotton yield of 388 kg per mu. In 2007, multi-point demonstrations were arranged in **Hami, Korla, Aksu, and other places. At present, its field performance is clearly superior to other varieties.

Suitable areas: Suitable for spring sowing or wheat intercropping transplanting in the Yellow-Huai cotton region and for planting in the **southern Xinjiang cotton region.

Cultivation points: In the Yellow-Huai cotton region, keep about 1500 plants per mu; in the **southern Xinjiang cotton region, keep about 12000 plants per mu.

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