Introduction to the Huaimai 25 wheat variety and its cultivation key points

Characteristics: semi-winterness, mid-to-late maturity, maturing 1-2 days later than the controls Yumai 49 and Xinmai 18. Seedlings semi-prostrate, leaf color dark green, leaves small, narrow and straight, strong tillering ability, moderate spike-forming rate. Plant height about 87 cm, plant type relatively compact, flag leaf erect and outwardly rolled, thick spike layer, numerous and uniform spikes, good seed set, culm waxy, appearance clean and neat. Spike spindle-shaped, long awns, white glume, white grain, grain semi-hard, good plumpness, low black embryo rate, good appearance and market quality. Average 416,000 spikes per mu, 37.4 grains per spike, 1000-grain weight 38.3 g. Seedling growth moderate, good cold resistance. Spring green-up and jointing late, polarization rapid. Heading stage late, growth good in the mid-to-late period, leaf functional period long in the late period, certain drought tolerance, tolerant to late high temperatures, fast grain filling, good ripening appearance. Culm elasticity moderate, lodging resistance relatively weak. Disease resistance evaluation: resistant to stem rust, moderately resistant to sheath blight, slow leaf rust, moderately susceptible to powdery mildew, highly susceptible to stripe rust and Fusarium head blight. Regional trial field performance: moderately susceptible to leaf blight. Mixed samples tested in 2006 and 2007 respectively: test weight 801 g/L, 796 g/L, protein (dry basis) content 13.04%, 13.75%, wet gluten content 25.2%, 27.8%, sedimentation value 26.7 ml, 26 ml, water absorption 53.2%, 54.2%, stability time 7.8 minutes, 6.6 minutes, maximum resistance to extension 382 E.U, 360 E.U, extensibility 11.0 cm, 11.2 cm, extension area 58 sq cm, 56 sq cm.

Yield performance: in the 2005-2006 season, participating in the winter water group variety regional trial of the southern Huanghuai winter wheat region, average yield 563.3 kg per mu, 6.95% higher than control 1 Xinmai 18, 7.49% higher than control 2 Yumai 49; in the 2006-2007 season continued trial, average yield 565.1 kg per mu, 8.27% higher than control Xinmai 18. In the 2006-2007 season production trial, average yield 530.3 kg per mu, 7.2% higher than control Xinmai 18.

Cultivation technical key points: suitable sowing period early to mid-October, suitable basic seedlings per mu 100,000-140,000 seedlings, under high-yield cultivation conditions pay attention to preventing lodging. Pay attention to controlling stripe rust, leaf rust and Fusarium head blight.