Lianchuang 808 corn zhong
Characteristics: The period from emergence to maturity in Huanghuaihai summer maize region is 102 days, which is earlier than that in Zheng Dan 958 1 day. Seedling leaf sheath is purple, leaves are green, leaf margin is green, anther is light purple, glume is green. The plant type is semi-compact, the plant height is 285 cm, the ear position is 102 cm, and the number of leaves per plant is 19 ~ 20. Filaments are light green, the spike is barrel-shaped, the spike length is18.3cm, the rows per spike are 14 ~ 16, the spike axis is red, the grain is yellow, and the weight of 100 grains is 32.9g.. Inoculation identification showed that the variety was moderately resistant to leaf spot, sensitive to leaf spot, rough dwarf disease and stem rot, and highly sensitive to Curvularia leaf spot, black smut and rough dwarf disease. Grain bulk density is 765g/L, crude protein content is 9.65%, crude fat content is 3.06%, crude starch content is 74.46%, and lysine content is 0.29%.
Yield performance: 20 13-20 14 participated in the regional test of summer maize varieties in Huanghuaihai, with an average yield of 695.8 kg per mu for two years, which was 5.6% higher than that of the control; The production test in 20 14 years showed that the average yield per mu was 687.0 kg, which was 7.8% higher than that of the control Zheng Dan 958.
Key points of cultivation techniques: cultivate in plots with medium fertility or above, and sow from late May to mid-June, with a planting density of about 4,000 plants per mu.
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. Suitable for summer sowing in Beijing, Tianjin, Baoding, Hebei and its south, southwestern Shanxi, Henan, Shandong, Huaibei, Jiangsu, Huaibei, Anhui and Shaanxi Guanzhong irrigation area. Pay attention to the prevention and control of rough dwarf disease, Curvularia leaf spot, smut, stem rot and corn borer.