【Main Characters of Varieties】

The middle-maturing spring maize group in North China emerged to maturity 127.7 days, which was 0.4 days earlier than the control Xianyu 335. Seedling leaf sheaths are light purple, leaves are green, leaf margins are green, anthers are light purple, and glumes are green. The plant is compact, the height of the plant is 292 cm, the height of the ear is 107 cm, and the number of leaves in the adult plant is 19. The ear is cylindrical, the ear length is 20.4 cm, the number of ear rows is 16 to 18, the ear thickness is 5.4 cm, the cob is red, the grain is yellow, and the grain is 40.7 grams. Quality analysis showed that the bulk weight of the grain was 752 g/L, the crude protein content was 9.95%, the crude fat content was 3.12%, the crude starch content was 73.51%, and the lysine content was 0.28%.

【Adaptability】

Participated in the East China North Mid-Mature Spring Corn Group Consortium Regional Test from 2017 to 2018, the average yield per mu in two years was 827.65 kg, which was 5.74% higher than the control Xianyu 335. In the production test in 2018, the average yield per mu was 817.4 kg, which was an increase of 4.66% over the control Xianyu 335. Inoculation identification, medium resistance to stem rot, ear rot, susceptible to large leaf spot, gray spot, and high susceptibility to head smut.

【Main cultivation measures】

The middle maturity area of East China North is suitable for planting from the end of April to the beginning of May. The seeds need to be coated before planting to reduce the incidence of smut; the planting density per acre does not exceed 4500 plants, and the plots with uniform soil strength and convenient irrigation and drainage should be selected. Planting to ensure that the seedlings are all at once. One-time application of foot base fertilizer 60 kilograms of special fertilizer for high-nitrogen corn per mu, or a combination of base fertilizer and top dressing; timely release of Trichogramma and pesticides to control corn borer and other pests. Pay attention to the prevention and treatment of head smut.

[Suitable area for planting]

This variety meets the national maize variety certification standards and passed the certification. It is suitable for the mountainous areas in eastern Liaoning and parts of northern Liaoning in the middle-mature spring maize area of North China, most areas of Jilin City, Baicheng City, and Tonghua City in Jilin Province, parts of Liaoyuan City, Changchun City, and Songyuan City, and the first accumulated temperature in Heilongjiang Province Belt, Inner Mongolia Xing'an League, Chifeng City, Tongliao City, Hohhot City, Baotou City, Bayannaoer City, Ordos City and other parts of the planting.

The middle-maturing spring maize group in North China emerged to maturity 127.7 days, which was 0.4 days earlier than the control Xianyu 335. Seedling leaf sheaths are light purple, leaves are green, leaf margins are green, anthers are light purple, and glumes are green. The plant is compact, the height of the plant is 292 cm, the height of the ear is 107 cm, and the number of leaves in the adult plant is 19. The ear is cylindrical, the ear length is 20.4 cm, the number of ear rows is 16 to 18, the ear thickness is 5.4 cm, the cob is red, the grain is yellow, and the grain is 40.7 grams. Inoculation identification, medium resistance to stem rot, ear rot, susceptible to large leaf spot, gray spot, and high susceptibility to head smut. Quality analysis showed that the bulk weight of the grain was 752 g/L, the crude protein content was 9.95%, the crude fat content was 3.12%, the crude starch content was 73.51%, and the lysine content was 0.28%.

2017-2018年参加东华北中熟春玉米组联合体区域试验，两年平均亩产827.65千克，比对照先玉335增产5.74%。2018年生产试验，平均亩产817.4千克，比对照先玉335增产4.66%。

东华北中熟区适宜在4月末至5月初播种，播种前需对种子进行包衣处理，以减少黑穗病的发生几率；每亩种植密度不超过4500株，选择地力均匀排灌方便的地块种植，确保一次全苗。一次性施足底肥每亩施用60千克高氮玉米专用肥，也可以采用底肥和追肥相结合的方式；适时释放赤眼蜂及农药防治玉米螟及其它害虫。注意防治丝黑穗病。

湖南