Characteristics, traits and key cultivation techniques of the Huaimai 22 wheat variety
Characteristics and traits: semi-winter type, mid-to-late maturity, maturing 1 day later than the control Yumai 49. Seedlings are prostrate, leaves small and dark green, strong tillering ability, medium rate of ear-bearing. Plant height about 85 cm, plant type slightly loose, flag leaf narrow and short, erect, with much wax, appearance clean and elegant, ear layer not very uniform, spikelets dense, good seed set. Spike spindle-shaped, long awn, white glume, white grain, grain semi-hard, medium plumpness, low black embryo rate, good appearance and market quality. Average 403,000 ears per mu, 33.0 grains per ear, 1000-grain weight 39.7 g. Strong winter cold resistance, late spring green-up, slow development, late heading, fairly good resistance to late spring cold. Prone to premature senescence, general maturity appearance. Stem elasticity fairly good, fairly resistant to lodging. Disease resistance identification: highly resistant to stem rust, moderately susceptible to powdery mildew and sheath blight, highly susceptible to stripe rust, leaf rust and Fusarium head blight. Regional trial field performance: highly susceptible to leaf blight. Mixed samples tested in 2005 and 2006 respectively: test weight 793 g/L and 788 g/L, protein (dry basis) content 13.28% and 13.71%, wet gluten content 26.1% and 27.1%, sedimentation value 28.1 ml and 28.6 ml, water absorption 52.2% and 54.2%, stability time 6.6 minutes and 5.5 minutes, maximum resistance to extension 305 E.U and 271 E.U, extensibility 13.2 cm (2006), extension area 54.0 sq cm and 52.0 sq cm.
Yield performance: in the 2004-2005 season, participating in the winter water group variety regional trial of the southern Huang-Huai winter wheat region, average yield 505.8 kg per mu, 4.24% higher than the control Yumai 49; in the 2005-2006 season continued trial, average yield 552.8 kg per mu, 6.22% higher than control 1 Xinmai 18, and 6.76% higher than control 2 Yumai 49. In the 2006-2007 season production trial, average yield 541.6 kg per mu, 9.0% higher than the control Xinmai 18
Key cultivation techniques: suitable sowing period is early to mid-October, suitable basic seedling number per mu is 100,000 to 140,000 seedlings. Pay attention to the control of stripe rust, leaf rust and Fusarium head blight.