Yumai 51 (formerly Zhoumai 11)

Breeding unit: agricultural Science Research Institute of Zhoukou District, Henan Province.

Approval: it was approved by Henan crop Variety approval Committee in 1997 and by the National crop Variety approval Committee in 2000.

Variety approval number: national examination and approval wheat 20000007.

Variety source: Zhou 8425B/ Yumai 17.

Characteristics: spring, compact plant type, plant height of about 85 cm. Long awn, white shell, white grain, ear spindle type, 1000-grain weight 37g. The bulk density is 796 g / L, the protein content is 13.7%, the wet gluten content is 32.8%, the sedimentation value is 27.8 ml, the water absorption rate is 61.7%, and the stable time is 6.8 minutes. Mid-early maturity, strong lodging resistance, poor cold resistance, high resistance to stripe rust, leaf rust, medium resistance to sheath blight, moderate susceptibility to powdery mildew, high susceptibility to stem rust and scab. He participated in the national regional trial of Chunshui Group in the southern part of Huang-Huai River in 1998 and 1999. In 1998, 18 points were collected, of which the yield was increased at 13:00 and decreased at 5 o'clock, with an average yield of 375.2 kg per mu, which was 5% higher than that of Yumai 18, which was 5% higher than that of Yumai 18. In 1999, the experiment was continued and 14 points were collected. Among them, the yield was increased at 12:00 and decreased at 2 o'clock, with an average yield of 458kg per mu, 9.91% higher than that of the control. In 1999, production experiments were carried out at nine sites in Henan, Jiangsu, Anhui and Shaanxi. Except for the one-point reduction in Shaanxi, the other eight points increased production, with an average yield of 444.8 kg per mu, 10.98% higher than that of the control.

Cultivation points: the best sowing date is October 14-20. The sowing amount is 7 Mu and 10 kg per mu. If you are resistant to fertilizer, you should pay attention to applying sufficient base fertilizer and topdressing as soon as possible. Pay attention to the prevention and control of aphids and other diseases and insect pests in the later stage. Easy to sprout, should pay attention to timely harvest and storage.