Detailed Introduction to the Dengmai 996 Wheat Variety

Dengmai 996 was bred by Henan Xiantianxia Seed Industry Co., Ltd. from a mutant line of Zhoumai 11. Approval number: Yushenmai 2007008.

Characteristics: a weak vernalization, early-maturing variety with a growth period of about 204 days, the same maturity time as the control Yumai 18. Seedlings are semi-erect, with strong cold resistance, medium tillering ability, and a high spike-forming rate. Plant height is 84 cm, the stems have good elasticity, and it is relatively resistant to lodging. The plant type is compact, the flag leaves are held upright, and the spike layer is neat, with good yellowing at maturity. The spike is spindle-shaped, with long awns and white grains. The grains are semi-hard, relatively plump, with high test weight and a low black embryo rate. The three yield components are well balanced: 397,600 spikes per mu, 38.8 grains per spike, and a 1,000-grain weight of 39.4 grams.

Yield performance: In the 2006-2007 Henan Province @#@245@#@ southern group production trial, the average yield per mu was 476.4 kg, an increase of 7.5% over the control Yumai 18.

Resistance identification: moderately resistant to leaf blight, stripe rust, and leaf rust; moderately susceptible to powdery mildew and sheath blight.

Cultivation points: suitable for planting in the southern rice-wheat double-cropping area of our province. The suitable sowing period is from October 15 to 28. For high-fertility plots, the suitable sowing rate is 8-9 kg per mu; for medium- and low-fertility plots, the sowing rate may be appropriately increased. If sowing is delayed, it is advisable to increase the sowing rate by 0.5 kg per mu for every 3 days of delay. Apply sufficient base fertilizer, weed in time before the green-up stage, and pay attention to pest and disease control. From heading to grain-filling stage, spray potassium dihydrogen phosphate solution in time to promote large, plump grains.