Wheat variety introduction: Xiangmai 62 (formerly known as Zhoumai 12)

Breeding institution: Zhoukou Prefecture Institute of Agricultural Sciences, Henan Province.

Approval status: approved by the Henan Provincial Crop Variety Approval Committee in 1999, and by the National Crop Variety Approval Committee in 2000.

Variety approval number: Guoshenmai 20000008.

Variety source: Zhou 842A / SW73295 (USA).

Characteristics: semi-winter habit, plant height 85-90 cm, compact plant type, long awns, white glumes, white grains, spindle-shaped spikes, 1000-grain weight 40 g. Test weight 781 g/L, protein content 14.1%, wet gluten content 31.8%, sedimentation value 36.0 ml, water absorption 63.56%, stability time 8.4 minutes. Medium maturity, medium cold tolerance, resistant to leaf rust, moderately susceptible to stripe rust, stem rust, powdery mildew and sheath blight, highly susceptible to fusarium head blight. In 1997, it participated in the national Yellow-Huai River southern region winter water group regional trial, with an average yield of 500.2 kg per mu, 5.87% higher than the control Yumai 21; in 1998, it participated in the national Yellow-Huai River southern region winter water group regional trial, with 19 trial sites, 14 sites showing increased yield and 5 sites showing decreased yield, with an average yield of 357.1 kg per mu, 8.1% higher than the control Yumai 21. In 1999, production trials were conducted at 9 sites in Henan, Jiangsu, Anhui and Shaanxi, of which 8 sites showed increased yield and 1 site showed decreased yield, with an average yield of 454.1 kg per mu, 8.23% higher than the control.

Cultivation points: the best sowing time is October 7-15. Sowing rate 6-9 kg per mu. Spray Zhuangfengshi before jointing to prevent lodging. Pay attention to the control of sheath blight, powdery mildew, fusarium head blight and aphids. As a high-quality special-purpose variety, it should be planted in concentrated contiguous blocks, harvested in time, and care should be taken to prevent black embryo.

Suitable range: planting in medium- to high-fertility early and medium stubble fields in Henan, Anhui, Jiangsu and other provinces in the southern part of the Yellow-Huai River winter wheat region.