Introduction to the Characteristics and Traits of the Xinmai 9817 Wheat Variety

Characteristics and traits: weak springness, mid-early maturity, maturity period the same as the control Yanzhan 4110. Seedlings erect, leaves erect, medium tillering ability. Plant height about 82 cm, plant type relatively compact, flag leaf wide and short, thick, upright, spike layer neat, spikes numerous and uniform, spikelets dense. Spike spindle-shaped, long awn, white glume, white grain, grain semi-hard, medium plumpness, low black embryo rate. High spike-forming rate, average spike number per mu 448,000 spikes, grains per spike 29.8, 1000-grain weight 43.1 g. Vigorous growth at seedling stage, relatively good cold resistance in winter. Fast green-up in spring, early jointing and heading, not tolerant of late spring cold. Tolerant of late-stage high temperature, long leaf functional period, smooth grain filling, relatively good ripening appearance. Medium lodging resistance. Disease resistance identification: moderately resistant to powdery mildew, moderately susceptible to stripe rust and leaf rust, highly susceptible to stem rust, fusarium head blight, and sharp eyespot. Field performance in regional trial: leaf tip drying relatively severe. Mixed samples tested in 2006 and 2007 respectively: test weight 781 g/L, 776 g/L, protein (dry basis) content 14.2%, 13.92%, wet gluten content 31.5%, 32.1%, sedimentation value 28.8 ml, 31.6 ml, water absorption 59.2%, 60.0%, stability time 2.2 minutes, 2.4 minutes, maximum resistance to extension 188 E.U, 242 E.U, extensibility 18.1 cm, 18.2 cm, extension area 50 sq cm, 64 sq cm.

Yield performance: In the 2005-2006 season, participating in the spring water group variety regional trial in the southern part of the Huang-Huai winter wheat region, average yield per mu 558.3 kg, an increase of 4.13% over control 1 Yanzhan 4110, and an increase of 11.62% over control 2 Yumai 18-64; in the 2006-2007 season continued trial, average yield per mu 532.4 kg, an increase of 4.8% over control Yanzhan 4110. In the 2006-2007 season production trial, average yield per mu 503.2 kg, an increase of 4.5% over control Yanzhan 4110.

Key cultivation techniques: suitable sowing period October 15-30, suitable basic seedlings per mu 140,000-180,000 seedlings, pay attention to lodging prevention in high-water and high-fertility fields. Pay attention to the control of sharp eyespot and fusarium head blight.