Introduction to the Wanmai 38 wheat variety (formerly named Guoyang 8779)

Breeding unit: Guoyang County Institute of Agricultural Sciences, Anhui Province.

Approval status: approved by the Anhui Provincial Crop Variety Approval Committee in 1997, and by the National Crop Variety Approval Committee in 1999.

Variety approval number: Guoshenmai 990006.

Variety source: Yanzhong 114 / 85-15-9.

Characteristics: semi-winterness, creeping seedlings, strong tillering ability, heavy wax bloom on leaves, plant height 80-85 cm. Spike spindle-shaped, long awns, white glumes. Grain oval, white grain, vitreous, 1000-grain weight 38 g. Protein content 14.2%, wet gluten content 36%, sedimentation value 51.8 ml, water absorption 60.9%, stability time 9.7 minutes. Medium maturity, whole growth period about 230 days, strong cold resistance, relatively resistant to lodging, moderately susceptible to stripe rust, powdery mildew, scab and sheath blight. In the national screening trial for the southern Huang-Huai-Hai region, the average yield per mu in 1996 was 455.02 kg, an increase of 1.22% over the control Yumai 18, not a significant difference; in 1997 the average yield per mu was 487.87 kg, an increase of 5.28% over the control Yumai 18, a significant difference. In the 1998 production trial, with 2 sites in Anhui and 1 site in Jiangsu, the average yield per mu was 323.1 kg, an average increase of 15.22% over the local control variety.

Cultivation points: suitable for early sowing, tolerant of late sowing; the suitable sowing period is from October 5 to November 1, can be advanced to September 25, and can be delayed to late November. Sowing rate per mu: 5-7 kg in early October, 7-10 kg in mid-October, 10-13 kg in late October, and no more than 15 kg in November.

Suitable range: for planting in medium to high fertility irrigated land in the southern Huang-Huai winter wheat region, including Huaibei in Anhui, Xuhuai in Jiangsu and areas south of Zhengzhou in Henan; attention should be paid to disease control in areas with severe stripe rust and sheath blight. The flour is suitable for making special bread flour.